{"id":28376,"date":"2026-10-23T01:33:12","date_gmt":"2026-10-23T01:33:12","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=28376"},"modified":"2026-10-23T01:33:12","modified_gmt":"2026-10-23T01:33:12","slug":"wordpress-php-update-form-mail-troubleshooting-2026","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/wordpress-php-update-form-mail-troubleshooting-2026\/","title":{"rendered":"PHP\u66f4\u65b0\u5f8c\u306bWordPress\u306e\u30d5\u30a9\u30fc\u30e0\u304c\u9001\u308c\u306a\u3044\uff1f\u539f\u56e0\u306e\u5207\u308a\u5206\u3051\u3068\u5fa9\u65e7\u624b\u9806"},"content":{"rendered":"<p>PHP\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u5f8c\u306b\u300cWordPress\u306e\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u304c\u9001\u308c\u306a\u3044\u300d\u300c\u9001\u4fe1\u5b8c\u4e86\u3068\u8868\u793a\u3055\u308c\u308b\u306e\u306b\u30e1\u30fc\u30eb\u304c\u5c4a\u304b\u306a\u3044\u300d\u3068\u6c17\u4ed8\u3044\u305f\u3089\u3001\u6700\u521d\u306b\u30d5\u30a9\u30fc\u30e0\u306e\u753b\u9762\u3001WordPress\u304b\u3089\u306e\u9001\u4fe1\u3001\u30e1\u30fc\u30eb\u306e\u914d\u9001\u30fb\u53d7\u4fe1\u3092\u5206\u3051\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002\u66f4\u65b0\u76f4\u5f8c\u3068\u3044\u3046\u6642\u9593\u306e\u4e00\u81f4\u3060\u3051\u3067\u3001PHP\u306e\u8106\u5f31\u6027\u3084\u4fee\u6b63\u7248\u305d\u306e\u3082\u306e\u3092\u539f\u56e0\u3068\u6c7a\u3081\u3064\u3051\u306a\u3044\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002\u30d5\u30a9\u30fc\u30e0\u306e\u8a2d\u5b9a\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u4e92\u63db\u6027\u3001SMTP\u63a5\u7d9a\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u306a\u3069\u3001\u969c\u5bb3\u304c\u8d77\u304d\u308b\u5834\u6240\u306f\u8907\u6570\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u306f\u3001\u4f1a\u793e\u30b5\u30a4\u30c8\u306eWordPress\u3092\u904b\u7528\u3057\u3001PHP\u3092\u66f4\u65b0\u3057\u305f\u5f8c\u306e\u554f\u3044\u5408\u308f\u305b\u6a5f\u4f1a\u640d\u5931\u3092\u907f\u3051\u305f\u3044\u62c5\u5f53\u8005\u5411\u3051\u3067\u3059\u3002Contact Form 7\u3068WP Mail SMTP\u3092\u4f8b\u306b\u3001\u75c7\u72b6\u306e\u5207\u308a\u5206\u3051\u3001\u5fa9\u65e7\u306e\u512a\u5148\u9806\u4f4d\u3001\u53d7\u4fe1\u6f0f\u308c\u306e\u78ba\u8a8d\u3001\u518d\u767a\u9632\u6b62\u307e\u3067\u5177\u4f53\u7684\u306b\u8aac\u660e\u3057\u307e\u3059\u3002\u72ec\u81ea\u306e\u30d5\u30a9\u30fc\u30e0\u3084\u5225\u306e\u30e1\u30fc\u30eb\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u3046\u5834\u5408\u3082\u3001\u540c\u3058\u9806\u5e8f\u3067\u300c\u753b\u9762\u2192\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u2192\u914d\u9001\u2192\u53d7\u4fe1\u300d\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u78ba\u8a8d\u65e5\uff1a2026\u5e7410\u670823\u65e5\u3002\u88fd\u54c1\u3084\u30b5\u30fc\u30d0\u30fc\u306e\u753b\u9762\u306f\u5909\u66f4\u3055\u308c\u308b\u305f\u3081\u3001\u64cd\u4f5c\u524d\u306b\u5404\u516c\u5f0f\u8cc7\u6599\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>PHP\u66f4\u65b0\u5f8c\u306b\u30d5\u30a9\u30fc\u30e0\u304c\u9001\u308c\u306a\u3044\u3068\u304d\u3001\u6700\u521d\u306e10\u5206\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-01-7.webp\" alt=\"\u30d5\u30a9\u30fc\u30e0\u7121\u53cd\u5fdc\u30fb\u8d64\u67a0\u30fb\u30aa\u30ec\u30f3\u30b8\u67a0\u30fb\u7dd1\u67a0\u672a\u7740\u306e\u75c7\u72b6\u5225\u5207\u308a\u5206\u3051\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<p><strong>\u7d50\u8ad6\uff1a<\/strong>\u300c\u9001\u4fe1\u30dc\u30bf\u30f3\u304c\u52d5\u304b\u306a\u3044\u300d\u300c\u8d64\u67a0\u3067\u5931\u6557\u3059\u308b\u300d\u300c\u7dd1\u67a0\u3067\u6210\u529f\u3059\u308b\u304c\u30e1\u30fc\u30eb\u304c\u306a\u3044\u300d\u3067\u306f\u3001\u7591\u3046\u3079\u304d\u5834\u6240\u304c\u9055\u3044\u307e\u3059\u3002\u5909\u66f4\u5c65\u6b74\u3068\u6642\u523b\u3092\u6b8b\u3057\u3001\u5b9f\u969b\u306e\u30d5\u30a9\u30fc\u30e0\u3092\u4e00\u5ea6\u3060\u3051\u5b89\u5168\u306b\u30c6\u30b9\u30c8\u3057\u3001\u53d7\u4fe1\u7bb1\u30fb\u8ff7\u60d1\u30e1\u30fc\u30eb\u30fb\u9001\u4fe1\u30c6\u30b9\u30c8\u306e\u7d50\u679c\u3092\u4e26\u3079\u3066\u304f\u3060\u3055\u3044\u3002\u6700\u521d\u304b\u3089PHP\u3092\u65e7\u7248\u3078\u623b\u3057\u305f\u308a\u3001\u30d5\u30a9\u30fc\u30e0\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u6d88\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u539f\u56e0\u304c\u898b\u3048\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u2460\u75c7\u72b6\u3092\u4e09\u3064\u306b\u5206\u3051\u3001\u554f\u3044\u5408\u308f\u305b\u3092\u53d6\u308a\u3053\u307c\u3055\u306a\u3044<\/h3>\n<p>\u969c\u5bb3\u3092\u898b\u3064\u3051\u305f\u62c5\u5f53\u8005\u306f\u3001\u307e\u305a\u5bfe\u8c61URL\u3001\u767a\u751f\u3057\u305f\u6642\u523b\u3001\u66f4\u65b0\u3057\u305fPHP\u306e\u524d\u5f8c\u306e\u7248\u3001\u540c\u6642\u306b\u66f4\u65b0\u3057\u305fWordPress\u30fb\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u7a2e\u985e\u3092\u8a18\u9332\u3057\u307e\u3059\u3002\u500b\u4eba\u60c5\u5831\u3092\u6271\u3046\u554f\u3044\u5408\u308f\u305b\u304c\u3042\u308b\u30b5\u30a4\u30c8\u3067\u306f\u3001\u691c\u8a3c\u306f\u67b6\u7a7a\u306e\u6c0f\u540d\u3068\u81ea\u5206\u305f\u3061\u306e\u30c6\u30b9\u30c8\u7528\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u884c\u3044\u3001\u753b\u9762\u3092\u64ae\u5f71\u3059\u308b\u3068\u304d\u3082\u672c\u7269\u306e\u304a\u5ba2\u69d8\u306e\u5165\u529b\u3092\u5199\u3055\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u6b21\u306b\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3068PC\u306e\u4e21\u65b9\u3067\u516c\u958b\u30da\u30fc\u30b8\u3092\u958b\u304d\u3001\u9001\u4fe1\u524d\u30fb\u9001\u4fe1\u5f8c\u306e\u72b6\u614b\u3068\u8868\u793a\u3055\u308c\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8a18\u9332\u3057\u307e\u3059\u3002\u30dc\u30bf\u30f3\u304c\u53cd\u5fdc\u3057\u306a\u3044\u5834\u5408\u306f\u30d6\u30e9\u30a6\u30b6\u30fc\u5074\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3084\u30d5\u30a9\u30fc\u30e0\u8aad\u307f\u8fbc\u307f\u3001\u9001\u4fe1\u5f8c\u306b\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u5834\u5408\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30e1\u30fc\u30eb\u51e6\u7406\u3001\u6210\u529f\u753b\u9762\u306a\u306e\u306b\u30e1\u30fc\u30eb\u304c\u306a\u3044\u5834\u5408\u306f\u914d\u9001\u30fb\u53d7\u4fe1\u306b\u91cd\u70b9\u3092\u7f6e\u304d\u307e\u3059\u3002<\/p>\n<p>\u53d7\u4ed8\u505c\u6b62\u4e2d\u306e\u6a5f\u4f1a\u640d\u5931\u306f\u8a3a\u65ad\u3068\u540c\u6642\u306b\u9632\u304e\u307e\u3059\u3002\u96fb\u8a71\u756a\u53f7\u3084\u4ee3\u66ff\u7a93\u53e3\u304c\u65e2\u306b\u3042\u308b\u306a\u3089\u516c\u958b\u30da\u30fc\u30b8\u306e\u4e0a\u90e8\u306b\u6848\u5185\u3057\u3001\u9867\u5ba2\u304b\u3089\u306e\u9023\u7d61\u304c\u5c4a\u304b\u306a\u3044\u53ef\u80fd\u6027\u3092\u62c5\u5f53\u90e8\u7f72\u3078\u4f1d\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u5fa9\u65e7\u3067\u304d\u308b\u307e\u3067\u30d5\u30a9\u30fc\u30e0\u304c\u300c\u9001\u4fe1\u3067\u304d\u305f\u300d\u3068\u8aa4\u8a8d\u3055\u305b\u308b\u72b6\u614b\u3092\u653e\u7f6e\u3057\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u9867\u5ba2\u306e\u60c5\u5831\u3092\u5b88\u308b\u305f\u3081\u3001\u30d5\u30a9\u30fc\u30e0\u5185\u5bb9\u3092\u5916\u90e8\u306e\u500b\u4eba\u30a2\u30ab\u30a6\u30f3\u30c8\u3078\u7121\u65ad\u8ee2\u9001\u3057\u305f\u308a\u3001\u30c6\u30b9\u30c8\u306e\u305f\u3081\u306b\u672c\u756a\u306e\u9867\u5ba2\u30c7\u30fc\u30bf\u3092\u8907\u88fd\u3057\u305f\u308a\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u53d7\u4ed8\u505c\u6b62\u306e\u958b\u59cb\u6642\u523b\u3068\u4ee3\u66ff\u7a93\u53e3\u3078\u306e\u8a98\u5c0e\u958b\u59cb\u6642\u523b\u3082\u8a18\u9332\u3059\u308c\u3070\u3001\u5f8c\u3067\u554f\u3044\u5408\u308f\u305b\u6f0f\u308c\u306e\u7bc4\u56f2\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u2461Contact Form 7\u306e\u8272\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8aad\u307f\u9055\u3048\u306a\u3044<\/h3>\n<p>Contact Form 7\u306e\u516c\u5f0fFAQ\u3067\u306f\u3001\u8d64\u3044\u67a0\u306f<code>wp_mail()<\/code>\u3092\u4f7f\u3063\u305f\u9001\u4fe1\u304c\u5931\u6557\u3057\u305f\u72b6\u614b\u3001\u30aa\u30ec\u30f3\u30b8\u306e\u67a0\u306f\u30b9\u30d1\u30e0\u3068\u5224\u65ad\u3055\u308c\u305f\u72b6\u614b\u3001\u7dd1\u306e\u67a0\u306f\u9001\u4fe1\u51e6\u7406\u304c\u6210\u529f\u3057\u305f\u72b6\u614b\u3068\u3057\u3066\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7dd1\u67a0\u306f\u300c\u76f8\u624b\u306e\u53d7\u4fe1\u7bb1\u307e\u3067\u5c4a\u3044\u305f\u300d\u3053\u3068\u306e\u8a3c\u660e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u3084\u53d7\u4fe1\u5074\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u6b62\u307e\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u540c\u3058\u30a8\u30e9\u30fc\u6587\u9762\u304c\u30e1\u30fc\u30eb\u9001\u4fe1\u5931\u6557\u3068\u30b9\u30d1\u30e0\u5224\u5b9a\u306b\u4f7f\u308f\u308c\u308b\u305f\u3081\u3001\u6587\u5b57\u3060\u3051\u3067\u5224\u65ad\u3057\u306a\u3044\u3067\u67a0\u8272\u3084\u30d5\u30a9\u30fc\u30e0\u306e\u72b6\u614b\u3092\u898b\u307e\u3059\u3002\u516c\u5f0f\u306e<a href=\"https:\/\/contactform7.com\/ja\/faq\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u65e5\u672c\u8a9eFAQ<\/a>\u3068<a href=\"https:\/\/contactform7.com\/2023\/12\/17\/form-status\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30d5\u30a9\u30fc\u30e0\u72b6\u614b\u306e\u8aac\u660e<\/a>\u3092\u57fa\u6e96\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u898b\u3048\u305f\u75c7\u72b6<\/th>\n<th>\u6700\u521d\u306b\u7591\u3046\u5834\u6240<\/th>\n<th>\u6700\u521d\u306e\u78ba\u8a8d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30dc\u30bf\u30f3\u304c\u53cd\u5fdc\u3057\u306a\u3044\u3001\u753b\u9762\u304c\u56fa\u307e\u308b<\/td>\n<td>\u753b\u9762\u30fbJavaScript\u30fb\u901a\u4fe1<\/td>\n<td>\u5225\u30d6\u30e9\u30a6\u30b6\u30fc\u3001\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u8aad\u307f\u8fbc\u307f<\/td>\n<\/tr>\n<tr>\n<td>\u8d64\u67a0\u306e\u30a8\u30e9\u30fc<\/td>\n<td>WordPress\u304b\u3089\u306e\u30e1\u30fc\u30eb\u9001\u4fe1<\/td>\n<td>\u30d5\u30a9\u30fc\u30e0\u8a2d\u5b9a\u3001WP Mail SMTP\u30c6\u30b9\u30c8\u3001\u9001\u4fe1\u30a8\u30e9\u30fc<\/td>\n<\/tr>\n<tr>\n<td>\u30aa\u30ec\u30f3\u30b8\u67a0\u306e\u30a8\u30e9\u30fc<\/td>\n<td>\u30b9\u30d1\u30e0\u5224\u5b9a<\/td>\n<td>CAPTCHA\u30fbAkismet\u30fb\u30b9\u30d1\u30e0\u5bfe\u7b56\u306e\u8a2d\u5b9a<\/td>\n<\/tr>\n<tr>\n<td>\u7dd1\u67a0\u3067\u6210\u529f\u3001\u53d7\u4fe1\u7bb1\u306b\u306a\u3044<\/td>\n<td>\u914d\u9001\u30fb\u53d7\u4fe1<\/td>\n<td>\u9001\u4fe1\u5148\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3001\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3001\u53d7\u4fe1\u5074\u30ed\u30b0<\/td>\n<\/tr>\n<tr>\n<td>500\u30a8\u30e9\u30fc\u3084\u7ba1\u7406\u753b\u9762\u3082\u505c\u6b62<\/td>\n<td>PHP\u4e92\u63db\u6027\u30fb\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u306a\u3069<\/td>\n<td>\u30b5\u30fc\u30d0\u30fc\u30ed\u30b0\u3001WordPress\u30ea\u30ab\u30d0\u30ea\u30fc\u30e2\u30fc\u30c9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8868\u306f\u300c\u539f\u56e0\u306e\u78ba\u5b9a\u300d\u3067\u306f\u306a\u304f\u3001\u8abf\u67fb\u3092\u59cb\u3081\u308b\u9806\u756a\u3067\u3059\u3002\u4f8b\u3048\u3070\u8d64\u67a0\u3067\u3082\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u8a2d\u5b9a\u4e0d\u5099\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u306e\u62d2\u5426\u3001\u9001\u4fe1\u7d4c\u8def\u306e\u906e\u65ad\u306a\u3069\u5019\u88dc\u306f\u8907\u6570\u3042\u308a\u307e\u3059\u3002\u66f4\u65b0\u524d\u306e\u30c6\u30b9\u30c8\u7d50\u679c\u304c\u306a\u3044\u5834\u5408\u306f\u300c\u66f4\u65b0\u304c\u539f\u56e0\u300d\u3068\u8a00\u3044\u5207\u3089\u305a\u3001\u300c\u66f4\u65b0\u5f8c\u306b\u767a\u898b\u3057\u305f\u969c\u5bb3\u300d\u3068\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5fa9\u65e7\u5f8c\u306b\u540c\u3058\u624b\u9806\u3067\u518d\u8a66\u9a13\u3067\u304d\u308b\u3088\u3046\u3001\u8a66\u9a13\u6642\u523b\u3001\u9001\u4fe1\u5148\u3001\u753b\u9762\u4e0a\u306e\u7d50\u679c\u3001\u5b9f\u969b\u306e\u53d7\u4fe1\u306e\u6709\u7121\u3092\u4e00\u884c\u305a\u3064\u6b8b\u3057\u307e\u3059\u3002<\/p>\n<h3>\u2462PHP\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fee\u6b63\u7248\u3092\u623b\u3059\u524d\u306b\u4ee3\u66ff\u7b56\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>2026\u5e7410\u670821\u65e5\u306bPHP\u516c\u5f0f\u304c\u516c\u958b\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30ea\u30fc\u30b9\u306f\u3001\u91cd\u5927\u306a\u8106\u5f31\u6027\u3078\u306e\u4fee\u6b63\u3092\u542b\u307f\u307e\u3059\u3002WordPress\u516c\u5f0f\u3082PHP\u5074\u306e\u66f4\u65b0\u3092\u4fc3\u3057\u3066\u3044\u307e\u3059\u3002\u30d5\u30a9\u30fc\u30e0\u4e0d\u5177\u5408\u304c\u540c\u3058\u65e5\u306b\u5224\u660e\u3057\u3066\u3082\u3001\u8106\u5f31\u6027\u304c\u30e1\u30fc\u30eb\u6a5f\u80fd\u3092\u6b62\u3081\u305f\u3068\u3044\u3046\u6839\u62e0\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u65e7\u7248\u3078\u5b89\u6613\u306b\u623b\u3059\u3068\u3001\u30b5\u30a4\u30c8\u306e\u9732\u51fa\u3092\u5897\u3084\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305a\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u306e\u4e92\u63db\u6027\u3092\u78ba\u8a8d\u3057\u3001\u30e1\u30fc\u30eb\u8a2d\u5b9a\u3084\u8a8d\u8a3c\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u9001\u4fe1\u5236\u9650\u3092\u8abf\u3079\u3066\u304f\u3060\u3055\u3044\u3002\u3084\u3080\u3092\u5f97\u305a\u4e00\u6642\u7684\u306a\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u691c\u8a0e\u3059\u308b\u5834\u5408\u306f\u3001\u30b5\u30a4\u30c8\u7ba1\u7406\u8005\u30fb\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u3068\u516c\u958b\u7bc4\u56f2\u3001\u671f\u9593\u3001\u66ab\u5b9a\u9632\u5fa1\u3001\u4fee\u6b63\u7248\u3078\u623b\u3059\u671f\u9650\u3092\u5408\u610f\u3057\u307e\u3059\u3002<\/p>\n<p>PHP\u306e\u8106\u5f31\u6027\u81ea\u4f53\u306e\u5bfe\u8c61\u3068\u4fee\u6b63\u7248\u306f<a href=\"https:\/\/www.php.net\/archive\/2026.php#2026-10-21-5\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u516c\u5f0f\u306e\u30ea\u30ea\u30fc\u30b9<\/a>\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u304c\u4fee\u6b63\u3092\u30d0\u30c3\u30af\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u753b\u9762\u4e0a\u306e\u7248\u756a\u53f7\u3060\u3051\u3067\u306f\u5224\u65ad\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u4e8b\u696d\u8005\u306e\u544a\u77e5\u3082\u898b\u307e\u3059\u3002\u8a73\u3057\u3044\u5bfe\u8c61\u78ba\u8a8d\u306f<a href=\"https:\/\/withcode.tech\/media\/php2shell-affected-versions-check-2026\/\">PHP\u306e\u5bfe\u8c61\u30d0\u30fc\u30b8\u30e7\u30f3\u78ba\u8a8d\u8a18\u4e8b<\/a>\u3001\u66f4\u65b0\u5168\u4f53\u306e\u6d41\u308c\u306f<a href=\"https:\/\/withcode.tech\/media\/wordpress-php-update-safe-2026\/\">WordPress\u306ePHP\u5b89\u5168\u66f4\u65b0\u8a18\u4e8b<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u672c\u8a18\u4e8b\u306f\u305d\u306e\u6b21\u306e\u300c\u30d5\u30a9\u30fc\u30e0\u304c\u52d5\u304f\u304b\u300d\u306b\u96c6\u4e2d\u3057\u307e\u3059\u3002<\/p>\n<h2>\u300c\u9001\u4fe1\u3067\u304d\u306a\u3044\u300d\u3068\u300c\u5c4a\u304b\u306a\u3044\u300d\u3092\u5207\u308a\u5206\u3051\u308b\u5b9f\u52d9\u624b\u9806<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-02-7.webp\" alt=\"\u5b9f\u30d5\u30a9\u30fc\u30e0\u3068\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u6210\u5426\u3067\u6b21\u306b\u8abf\u3079\u308b\u5834\u6240\u3092\u6c7a\u3081\u308b\u8868\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<p><strong>\u7d50\u8ad6\uff1a<\/strong>\u4e00\u3064\u306e\u30c6\u30b9\u30c8\u9001\u4fe1\u3067\u3001\u753b\u9762\u306e\u5b8c\u4e86\u8868\u793a\u3001WordPress\u306e\u9001\u4fe1\u51e6\u7406\u3001\u30e1\u30fc\u30eb\u914d\u9001\u3001\u53d7\u4fe1\u7bb1\u3078\u306e\u5230\u9054\u3092\u5225\u3005\u306b\u8a18\u9332\u3057\u307e\u3059\u3002\u30c6\u30b9\u30c8\u3092\u7e70\u308a\u8fd4\u3059\u524d\u306b\u9001\u4fe1\u5236\u9650\u3084\u672c\u756a\u9867\u5ba2\u3078\u306e\u901a\u77e5\u3092\u78ba\u8a8d\u3057\u3001\u4e8c\u91cd\u9001\u4fe1\u3067\u6df7\u4e71\u3092\u5897\u3084\u3055\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u6761\u4ef6\u3092\u305d\u308d\u3048\u308b<\/h3>\n<p>\u672c\u756a\u30d5\u30a9\u30fc\u30e0\u3067\u691c\u8a3c\u3059\u308b\u5834\u5408\u306f\u3001\u5229\u7528\u8005\u306e\u5165\u529b\u9805\u76ee\u3068\u540c\u3058\u5f62\u5f0f\u306e\u30c0\u30df\u30fc\u60c5\u5831\u3092\u4f7f\u3044\u3001\u4ef6\u540d\u304b\u672c\u6587\u306b\u691c\u8a3cID\u3068\u6642\u523b\u3092\u5165\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u300c\u691c\u8a3c 2026-10-23 15:00 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9001\u3060\u3051\u3067\u306f\u3001\u9867\u5ba2\u5bfe\u5fdc\u306e\u518d\u958b\u3092\u78ba\u8a8d\u3057\u305f\u3053\u3068\u306b\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30d5\u30a9\u30fc\u30e0\u753b\u9762\u306e\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u30af\u30ea\u30c3\u30af\u524d\u304b\u3089\u30dc\u30bf\u30f3\u304c\u7121\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u5fc5\u9808\u9805\u76ee\u306e\u672a\u5165\u529b\u3001\u540c\u610f\u30c1\u30a7\u30c3\u30af\u3001JavaScript\u306e\u8aad\u307f\u8fbc\u307f\u5931\u6557\u306a\u3069\u3092\u5148\u306b\u8abf\u3079\u307e\u3059\u3002\u5225\u30d6\u30e9\u30a6\u30b6\u30fc\u30fb\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u518d\u73fe\u3059\u308b\u304b\u3001\u958b\u767a\u8005\u30c4\u30fc\u30eb\u306e\u30b3\u30f3\u30bd\u30fc\u30eb\u3068\u901a\u4fe1\u30bf\u30d6\u306b\u30a8\u30e9\u30fc\u304c\u3042\u308b\u304b\u3092\u8a18\u9332\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067403\u304c\u51fa\u3066\u3044\u308b\u5834\u5408\u306fWAF\u306a\u3069\u306e\u906e\u65ad\u3082\u5019\u88dc\u3067\u3059\u3002\u305f\u3060\u3057\u3001WAF\u306e\u6a5f\u80fd\u3092\u7121\u52b9\u306b\u3057\u3066\u672c\u756a\u5168\u4f53\u3078\u5f71\u97ff\u3055\u305b\u308b\u524d\u306b\u3001\u5bfe\u8c61\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u906e\u65ad\u30eb\u30fc\u30eb\u3092\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u3078\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u753b\u9762\u3060\u3051\u6210\u529f\u3067\u3082\u3001\u305d\u306e\u6642\u70b9\u3067\u306f\u7ba1\u7406\u8005\u306e\u30e1\u30fc\u30eb\u53d7\u4fe1\u306f\u672a\u78ba\u8a8d\u3067\u3059\u3002<\/p>\n<p>Contact Form 7\u306a\u3089\u67a0\u8272\u3068\u72b6\u614b\u3092\u898b\u307e\u3059\u3002\u8d64\u67a0\u3067\u306f\u30e1\u30fc\u30eb\u9001\u4fe1\u51e6\u7406\u3001\u30aa\u30ec\u30f3\u30b8\u67a0\u3067\u306f\u30b9\u30d1\u30e0\u5224\u5b9a\u306b\u9032\u307f\u307e\u3059\u3002\u30aa\u30ec\u30f3\u30b8\u67a0\u3092\u300cSMTP\u30a8\u30e9\u30fc\u300d\u3068\u6c7a\u3081\u3064\u3051\u3066\u30e1\u30fc\u30eb\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4ea4\u63db\u3057\u3066\u3082\u6539\u5584\u3057\u307e\u305b\u3093\u3002\u7dd1\u67a0\u306a\u3089\u53d7\u4fe1\u5074\u3068\u30e1\u30fc\u30eb\u8a8d\u8a3c\u3078\u9032\u307f\u307e\u3059\u3002\u516c\u5f0fFAQ\u306f\u3001\u7dd1\u67a0\u3067\u3082\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a3\u30eb\u30bf\u30fc\u306a\u3069\u3067\u53d7\u4fe1\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308b\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/contactform7.com\/faq\/i-see-green-border-response-but-i-never-receive-mail\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u7dd1\u67a0\u3067\u5c4a\u304b\u306a\u3044\u5834\u5408\u306e\u516c\u5f0fFAQ<\/a>\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>WP Mail SMTP\u306e\u30c6\u30b9\u30c8\u7d50\u679c\u3068\u5b9f\u30d5\u30a9\u30fc\u30e0\u306e\u7d50\u679c\u3092\u6bd4\u3079\u308b<\/h3>\n<p>WP Mail SMTP\u3092\u4f7f\u3063\u3066\u3044\u308b\u306a\u3089\u3001\u7ba1\u7406\u753b\u9762\u306e\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u6a5f\u80fd\u3067\u691c\u8a3c\u7528\u30a2\u30c9\u30ec\u30b9\u5b9b\u306b\u4e00\u901a\u9001\u308a\u307e\u3059\u3002\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306f\u3001\u8a2d\u5b9a\u3057\u305f\u30e1\u30fc\u30e9\u30fc\u3084\u30c9\u30e1\u30a4\u30f3\u306e\u78ba\u8a8d\u3068\u3068\u3082\u306b\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u9001\u308b\u624b\u9806\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3082\u5931\u6557\u3059\u308c\u3070\u3001SMTP\u8a8d\u8a3c\u3001API\u30e1\u30fc\u30e9\u30fc\u3001\u9001\u4fe1\u5148\u3078\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5236\u9650\u306a\u3069\u5171\u901a\u306e\u7d4c\u8def\u3092\u8abf\u3079\u307e\u3059\u3002\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3060\u3051\u6210\u529f\u3057\u3066\u5b9f\u30d5\u30a9\u30fc\u30e0\u3060\u3051\u5931\u6557\u3059\u308b\u306a\u3089\u3001\u30d5\u30a9\u30fc\u30e0\u5074\u306e\u5dee\u51fa\u4eba\u3001\u5b9b\u5148\u3001\u30d8\u30c3\u30c0\u30fc\u3001\u6dfb\u4ed8\u3084\u30d5\u30a9\u30fc\u30e0\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u306e\u9023\u643a\u3092\u512a\u5148\u3057\u307e\u3059\u3002\u516c\u5f0f\u306e<a href=\"https:\/\/wpmailsmtp.com\/docs\/how-to-send-a-test-email-in-wp-mail-smtp\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u624b\u9806<\/a>\u3068<a href=\"https:\/\/wpmailsmtp.com\/docs\/how-to-troubleshoot-wp-mail-smtp\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a>\u306b\u6cbf\u3063\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>WP Mail SMTP\u3092\u5229\u7528\u3057\u3066\u3044\u306a\u3044\u30b5\u30a4\u30c8\u3067\u306f\u3001\u3053\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u5c0e\u5165\u304c\u552f\u4e00\u306e\u89e3\u6c7a\u7b56\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u65e2\u306b\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u306eSMTP\u3084\u30e1\u30fc\u30ebAPI\u3001\u5225\u306e\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u9001\u4fe1\u7d4c\u8def\u3067\u30ed\u30b0\u3068\u30c6\u30b9\u30c8\u7d50\u679c\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u8907\u6570\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u540c\u6642\u306b\u8ffd\u52a0\u3059\u308b\u3068\u9001\u4fe1\u7d4c\u8def\u304c\u5206\u304b\u308a\u306b\u304f\u304f\u306a\u308b\u305f\u3081\u3001\u307e\u305a\u73fe\u5728\u306e\u69cb\u6210\u3092\u56f3\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300c\u30d5\u30a9\u30fc\u30e0\u2192WordPress\u2192\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u307e\u305f\u306fPHP\u306e\u30e1\u30fc\u30eb\u6a5f\u80fd\u2192\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u2192\u53d7\u4fe1\u5074\u300d\u306e\u3069\u3053\u307e\u3067\u8a3c\u62e0\u304c\u3042\u308b\u304b\u3092\u5224\u65ad\u3057\u307e\u3059\u3002\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5165\u308c\u66ff\u3048\u308b\u306e\u306f\u3001\u305d\u306e\u7d4c\u8def\u3067\u969c\u5bb3\u7b87\u6240\u304c\u7279\u5b9a\u3055\u308c\u305f\u5f8c\u3067\u3059\u3002<\/p>\n<h3>\u4e8c\u3064\u306e\u30c6\u30b9\u30c8\u3092\u639b\u3051\u5408\u308f\u305b\u3066\u969c\u5bb3\u7b87\u6240\u3092\u7d5e\u308b<\/h3>\n<p>\u5b9f\u30d5\u30a9\u30fc\u30e0\u306e\u9001\u4fe1\u3068\u30e1\u30fc\u30eb\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30c6\u30b9\u30c8\u3092\u3001\u540c\u3058\u6642\u523b\u5e2f\u30fb\u540c\u3058\u53d7\u4fe1\u5148\u3067\u6bd4\u3079\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u8abf\u67fb\u306e\u9806\u756a\u3092\u7d5e\u308c\u307e\u3059\u3002\u4e21\u65b9\u5931\u6557\u306a\u3089\u5171\u901a\u306e\u9001\u4fe1\u7d4c\u8def\u3092\u512a\u5148\u3057\u307e\u3059\u3002\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3060\u3051\u6210\u529f\u306a\u3089\u30d5\u30a9\u30fc\u30e0\u56fa\u6709\u306e\u8a2d\u5b9a\u3084\u9001\u4fe1\u6761\u4ef6\u3092\u898b\u307e\u3059\u3002\u4e21\u65b9\u6210\u529f\u8868\u793a\u3067\u672a\u7740\u306a\u3089\u53d7\u4fe1\u30fb\u914d\u9001\u3092\u898b\u307e\u3059\u3002\u5b9f\u30d5\u30a9\u30fc\u30e0\u3060\u3051\u6210\u529f\u8868\u793a\u3067\u53d7\u4fe1\u3082\u3067\u304d\u3001\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3060\u3051\u5931\u6557\u306a\u3089\u3001\u30c6\u30b9\u30c8\u6a5f\u80fd\u3067\u9078\u3070\u308c\u305f\u5dee\u51fa\u4eba\u3084\u30e1\u30fc\u30e9\u30fc\u8a2d\u5b9a\u304c\u672c\u756a\u30d5\u30a9\u30fc\u30e0\u3068\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5358\u7d14\u306a\u4e8c\u5206\u6cd5\u3067\u306f\u306a\u304f\u3001\u5dee\u51fa\u4eba\u3001\u4ef6\u540d\u3001\u5b9b\u5148\u3001\u6dfb\u4ed8\u306e\u9055\u3044\u3082\u66f8\u304d\u6dfb\u3048\u3066\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5b9f\u30d5\u30a9\u30fc\u30e0<\/th>\n<th>\u30e1\u30fc\u30eb\u30c6\u30b9\u30c8<\/th>\n<th>\u512a\u5148\u8abf\u67fb<\/th>\n<th>\u6b21\u306e\u8a3c\u62e0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5931\u6557<\/td>\n<td>\u5931\u6557<\/td>\n<td>\u5171\u901a\u306e\u9001\u4fe1\u7d4c\u8def<\/td>\n<td>\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30a8\u30e9\u30fc\u3068\u63a5\u7d9a<\/td>\n<\/tr>\n<tr>\n<td>\u5931\u6557<\/td>\n<td>\u6210\u529f<\/td>\n<td>\u30d5\u30a9\u30fc\u30e0\u56fa\u6709\u306e\u8a2d\u5b9a<\/td>\n<td>\u5dee\u51fa\u4eba\u30fb\u5b9b\u5148\u30fb\u8a2d\u5b9a\u691c\u8a3c<\/td>\n<\/tr>\n<tr>\n<td>\u6210\u529f\u8868\u793a\u3001\u672a\u7740<\/td>\n<td>\u6210\u529f\u8868\u793a\u3001\u672a\u7740<\/td>\n<td>\u914d\u9001\u30fb\u53d7\u4fe1\u5074<\/td>\n<td>\u914d\u9001\u30ed\u30b0\u30fb\u9694\u96e2\u30fb\u8a8d\u8a3c<\/td>\n<\/tr>\n<tr>\n<td>\u6210\u529f\u3057\u3066\u5230\u9054<\/td>\n<td>\u5931\u6557<\/td>\n<td>\u30c6\u30b9\u30c8\u6a5f\u80fd\u306e\u6761\u4ef6<\/td>\n<td>\u30e1\u30fc\u30e9\u30fc\u30fb\u5dee\u51fa\u4eba\u306e\u5dee<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306e\u8868\u3067\u3082\u539f\u56e0\u3092\u65ad\u5b9a\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30ed\u30b0\u306b\u53d7\u3051\u4ed8\u3051\u8a18\u9332\u304c\u3042\u308b\u306e\u304b\u3001\u53d7\u4fe1\u30b5\u30fc\u30d3\u30b9\u306b\u914d\u9001\u30fb\u9694\u96e2\u8a18\u9332\u304c\u3042\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002WordPress\u5074\u306e\u300c\u9001\u4fe1\u6210\u529f\u300d\u306f\u3001\u53d7\u4fe1\u5074\u306e\u30b5\u30fc\u30d0\u30fc\u304c\u30e1\u30fc\u30eb\u3092\u53d7\u3051\u5165\u308c\u305f\u8a3c\u62e0\u3068\u306f\u5225\u3067\u3059\u3002\u30ed\u30b0\u304c\u4fdd\u5b58\u3055\u308c\u308b\u671f\u9593\u306f\u30b5\u30fc\u30d3\u30b9\u3054\u3068\u306b\u7570\u306a\u308b\u305f\u3081\u3001\u8abf\u67fb\u4f9d\u983c\u3092\u5f8c\u56de\u3057\u306b\u3057\u306a\u3044\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002\u969c\u5bb3\u306e\u958b\u59cb\u6642\u523b\u304c\u66d6\u6627\u306a\u5834\u5408\u306f\u3001\u6700\u5f8c\u306b\u6b63\u5e38\u53d7\u4fe1\u3067\u304d\u305f\u554f\u3044\u5408\u308f\u305b\u3068\u3001\u6700\u521d\u306b\u672a\u7740\u304c\u5224\u660e\u3057\u305f\u554f\u3044\u5408\u308f\u305b\u306e\u9593\u3092\u8abf\u67fb\u5bfe\u8c61\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u306e\u300c\u53d7\u3051\u53d6\u308c\u306a\u3044\u300d\u3092\u53d7\u4fe1\u5074\u304b\u3089\u3082\u8abf\u3079\u308b<\/h3>\n<p>\u30d5\u30a9\u30fc\u30e0\u306f\u6210\u529f\u3001\u9001\u4fe1\u30c6\u30b9\u30c8\u3082\u6210\u529f\u306a\u306e\u306b\u62c5\u5f53\u8005\u306b\u5c4a\u304b\u306a\u3044\u5834\u5408\u306f\u3001\u5b9b\u5148\u306e\u8868\u8a18\u3001\u8ee2\u9001\u8a2d\u5b9a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u30d5\u30a9\u30eb\u30c0\u30fc\u3001\u53d7\u4fe1\u5074\u306e\u9694\u96e2\u9818\u57df\u3001\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306e\u53d7\u4fe1\u62d2\u5426\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u53d7\u4fe1\u30b5\u30fc\u30d0\u30fc\u3084\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u7ba1\u7406\u8005\u304c\u30ed\u30b0\u3092\u898b\u3089\u308c\u308b\u306a\u3089\u3001\u691c\u8a3cID\u30fb\u9001\u4fe1\u6642\u523b\u30fb\u5dee\u51fa\u4eba\u30fb\u53d7\u4fe1\u8005\u3092\u6e21\u3057\u3066\u914d\u9001\u7d50\u679c\u3092\u7167\u5408\u3057\u307e\u3059\u3002\u300c\u9001\u4fe1\u6210\u529f\u300d\u306f\u53d7\u4fe1\u4fdd\u8a3c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002Gmail\u3084Microsoft 365\u306e\u3088\u3046\u306a\u53d7\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3084\u7d44\u7e54\u30dd\u30ea\u30b7\u30fc\u3067\u500b\u4eba\u306e\u53d7\u4fe1\u7bb1\u306b\u51fa\u306a\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u62c5\u5f53\u8005\u500b\u4eba\u306e\u753b\u9762\u3060\u3051\u3067\u306a\u304f\u3001\u7d44\u7e54\u306e\u7ba1\u7406\u8005\u304c\u78ba\u8a8d\u3067\u304d\u308b\u7bc4\u56f2\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306eSPF\u3001DKIM\u3001DMARC\u306f\u3001\u5dee\u51fa\u4eba\u306e\u6b63\u5f53\u6027\u3092\u5224\u65ad\u3059\u308b\u624b\u639b\u304b\u308a\u3067\u3059\u3002WP Mail SMTP\u306e\u30c6\u30b9\u30c8\u7d50\u679c\u306b\u306f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306e\u8a2d\u5b9a\u4e0a\u306e\u554f\u984c\u304c\u793a\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u8a2d\u5b9a\u304c\u8db3\u308a\u306a\u3044\u3068\u5206\u304b\u3063\u305f\u3089\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u516c\u5f0f\u624b\u9806\u3068DNS\u7ba1\u7406\u8005\u3092\u78ba\u8a8d\u3057\u3001\u65e2\u5b58\u30ec\u30b3\u30fc\u30c9\u3092\u628a\u63e1\u3057\u3066\u304b\u3089\u5909\u66f4\u3057\u307e\u3059\u3002SPF\u3092\u4f55\u672c\u3082\u8ffd\u52a0\u3059\u308b\u3068\u9006\u306b\u8aa4\u52d5\u4f5c\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3057\u3001DMARC\u3092\u5f37\u3044\u62d2\u5426\u8a2d\u5b9a\u306b\u3059\u308b\u524d\u306b\u306f\u65e2\u5b58\u306e\u6b63\u898f\u9001\u4fe1\u7d4c\u8def\u3092\u6d17\u3044\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6025\u3044\u3067DNS\u3092\u5909\u66f4\u3059\u308b\u3088\u308a\u3001\u307e\u305a\u73fe\u5728\u306e\u5024\u3068\u5229\u7528\u4e2d\u306e\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u7167\u5408\u3059\u308b\u3053\u3068\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<h2>Contact Form 7\u306e\u8a2d\u5b9a\u30fb\u30d7\u30e9\u30b0\u30a4\u30f3\u4e92\u63db\u6027\u3092\u78ba\u8a8d\u3059\u308b<\/h2>\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-03-7.webp\" alt=\"Contact Form 7\u306e\u5b9b\u5148\u30fb\u9001\u4fe1\u5143\u30fbReply-To\u3068\u53d7\u4fe1\u5148\u306e\u95a2\u4fc2\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<p><strong>\u7d50\u8ad6\uff1a<\/strong>\u30d5\u30a9\u30fc\u30e0\u306e\u30e1\u30fc\u30eb\u8a2d\u5b9a\u3068\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u52d5\u4f5c\u3092\u5225\u3005\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u7279\u306b\u5dee\u51fa\u4eba\u3068\u8fd4\u4fe1\u5148\u3092\u6df7\u540c\u3057\u306a\u3044\u3053\u3068\u3001\u8a2d\u5b9a\u30a8\u30e9\u30fc\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u3001PHP\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3092\u5b89\u5168\u306b\u898b\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002PHP\u66f4\u65b0\u3092\u7406\u7531\u306b\u3059\u3079\u3066\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4e00\u62ec\u505c\u6b62\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u5dee\u51fa\u4eba\u30fb\u5b9b\u5148\u30fb\u8fd4\u4fe1\u5148\u3092\u5f79\u5272\u3067\u6574\u7406\u3059\u308b<\/h3>\n<p>Contact Form 7\u306e\u300c\u30e1\u30fc\u30eb\u300d\u8a2d\u5b9a\u306b\u306f\u3001\u9001\u4fe1\u5148\u3001\u9001\u4fe1\u5143\u3001\u984c\u540d\u3001\u8ffd\u52a0\u30d8\u30c3\u30c0\u30fc\u3001\u672c\u6587\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u304c\u5206\u304b\u308c\u3066\u3044\u307e\u3059\u3002\u516c\u5f0f\u306e<a href=\"https:\/\/contactform7.com\/setting-up-mail\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30e1\u30fc\u30eb\u8a2d\u5b9a\u624b\u9806<\/a>\u306f\u3001\u9001\u4fe1\u5143\u306b\u30b5\u30a4\u30c8\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u5c5e\u3059\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3046\u3053\u3068\u3092\u52e7\u3081\u3066\u3044\u307e\u3059\u3002\u554f\u3044\u5408\u308f\u305b\u8005\u304c\u5165\u529b\u3057\u305f\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u9001\u4fe1\u5143\u306b\u76f4\u5165\u308c\u3059\u308b\u3068\u3001\u306a\u308a\u3059\u307e\u3057\u3068\u5224\u65ad\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u8fd4\u4fe1\u304c\u5fc5\u8981\u306a\u3089\u8ffd\u52a0\u30d8\u30c3\u30c0\u30fc\u306b<code>Reply-To: [your-email]<\/code>\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5b9f\u969b\u306e\u30d5\u30a9\u30fc\u30e0\u30bf\u30b0\u540d\u304c<code>your-email<\/code>\u3067\u306a\u3044\u5834\u5408\u306f\u4e00\u81f4\u3059\u308b\u540d\u524d\u3078\u76f4\u3057\u307e\u3059\u3002\u30c6\u30b9\u30c8\u3067\u306f\u672a\u5165\u529b\u3084\u4e0d\u6b63\u306a\u30a2\u30c9\u30ec\u30b9\u304c\u30d8\u30c3\u30c0\u30fc\u306b\u5165\u3089\u306a\u3044\u3053\u3068\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u300c\u30d5\u30a9\u30fc\u30e0\u901a\u77e5\u7528\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u9001\u4fe1\u5143\u3001\u53d7\u4ed8\u30c1\u30fc\u30e0\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u9001\u4fe1\u5148\u3001\u5165\u529b\u3055\u308c\u305f\u5229\u7528\u8005\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u8fd4\u4fe1\u5148\u306b\u3059\u308b\u3068\u3001\u904b\u7528\u4e0a\u306e\u5f79\u5272\u304c\u660e\u78ba\u3067\u3059\u3002\u81ea\u52d5\u8fd4\u4fe1\u30e1\u30fc\u30eb\u306e\u5dee\u51fa\u4eba\u3082\u81ea\u793e\u30c9\u30e1\u30a4\u30f3\u306e\u9001\u4fe1\u53ef\u80fd\u306a\u30a2\u30c9\u30ec\u30b9\u306b\u3057\u3001\u5229\u7528\u8005\u306e\u5165\u529b\u5185\u5bb9\u3092\u305d\u306e\u307e\u307e\u4ef6\u540d\u306b\u5165\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306b\u3088\u3063\u3066\u306f\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306e\u4e8b\u524d\u767b\u9332\u3084\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u5fc5\u8981\u3067\u3059\u3002WordPress\u753b\u9762\u306e\u8a2d\u5b9a\u5024\u3060\u3051\u3067\u306a\u304f\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u5074\u306b\u305d\u306e\u5dee\u51fa\u4eba\u3092\u4f7f\u3046\u8a31\u53ef\u304c\u3042\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u9867\u5ba2\u304c\u5165\u529b\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u3092\u516c\u958b\u8a18\u4e8b\u3084\u30ed\u30b0\u306b\u63b2\u8f09\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u8a2d\u5b9a\u691c\u8a3c\u306e\u8b66\u544a\u3092\u8aad\u3093\u3067\u304b\u3089\u4fee\u6b63\u3059\u308b<\/h3>\n<p>Contact Form 7\u306e\u8a2d\u5b9a\u691c\u8a3c\u306f\u3001\u30e1\u30fc\u30eb\u30bf\u30d6\u306e\u4e0d\u6b63\u306a\u30d8\u30c3\u30c0\u30fc\u3084\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u69cb\u6587\u3092\u691c\u51fa\u3057\u307e\u3059\u3002\u8b66\u544a\u3092\u300c\u3088\u304f\u51fa\u308b\u3082\u306e\u300d\u3068\u3057\u3066\u7121\u8996\u305b\u305a\u3001\u3069\u306e\u6b04\u3068\u3069\u306e\u30bf\u30b0\u306e\u5bfe\u5fdc\u306b\u554f\u984c\u304c\u3042\u308b\u304b\u3092\u8abf\u3079\u307e\u3059\u3002\u9001\u4fe1\u5148\u3078\u30d5\u30a9\u30fc\u30e0\u30bf\u30b0\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u4efb\u610f\u5165\u529b\u306a\u3089\u7a7a\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5fc5\u9808\u306e<code>email*<\/code>\u9805\u76ee\u306b\u3057\u305f\u3046\u3048\u3067\u3001\u30e1\u30fc\u30eb\u30bf\u30b0\u304c\u305d\u306e\u9805\u76ee\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u672c\u6587\u4e2d\u306e\u30bf\u30b0\u8aa4\u8a18\u306f\u9001\u4fe1\u305d\u306e\u3082\u306e\u3092\u6b62\u3081\u306a\u304f\u3066\u3082\u3001\u304a\u5ba2\u69d8\u306e\u5165\u529b\u5185\u5bb9\u304c\u6b20\u3051\u308b\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002\u8a2d\u5b9a\u5909\u66f4\u524d\u306e\u753b\u9762\u3092\u4fdd\u5b58\u3057\u3001\u623b\u305b\u308b\u72b6\u614b\u306b\u3057\u3066\u304b\u3089\u4e00\u9805\u76ee\u305a\u3064\u4fee\u6b63\u3057\u307e\u3059\u3002<\/p>\n<p>\u516c\u5f0f\u306e<a href=\"https:\/\/contactform7.com\/configuration-errors\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u8a2d\u5b9a\u30a8\u30e9\u30fc\u306e\u8aac\u660e<\/a>\u3068<a href=\"https:\/\/contactform7.com\/ja\/configuration-validator-faq\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u65e5\u672c\u8a9e\u306e\u8a2d\u5b9a\u691c\u8a3cFAQ<\/a>\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8b66\u544a\u304c\u6d88\u3048\u305f\u3053\u3068\u3060\u3051\u3092\u5b8c\u4e86\u6761\u4ef6\u306b\u305b\u305a\u3001\u5b9f\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u7ba1\u7406\u8005\u5b9b\u3068\u81ea\u52d5\u8fd4\u4fe1\u306e\u4e21\u65b9\u304c\u5c4a\u304f\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u4fee\u6b63\u5f8c\u306b\u8ffd\u52a0\u30d8\u30c3\u30c0\u30fc\u304c\u671f\u5f85\u901a\u308a\u5165\u3063\u3066\u3044\u308b\u304b\u3001\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u3082\u898b\u307e\u3059\u3002\u3053\u3053\u3067\u8fd4\u4fe1\u5148\u304c\u9867\u5ba2\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u3001\u62c5\u5f53\u8005\u304c\u300c\u8fd4\u4fe1\u300d\u3092\u62bc\u3057\u305f\u3068\u304d\u306e\u8aa4\u9001\u4fe1\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002\u30e1\u30fc\u30eb\u306e\u7d30\u304b\u306a\u30d8\u30c3\u30c0\u30fc\u60c5\u5831\u306b\u306f\u500b\u4eba\u60c5\u5831\u304c\u542b\u307e\u308c\u308b\u305f\u3081\u3001\u5171\u6709\u7bc4\u56f2\u3092\u9650\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>Mail (2)\u306e\u81ea\u52d5\u8fd4\u4fe1\u306f\u901a\u77e5\u30e1\u30fc\u30eb\u3068\u5206\u3051\u3066\u70b9\u691c\u3059\u308b<\/h3>\n<p>Contact Form 7\u3067Mail (2)\u3092\u4f7f\u3046\u3068\u3001\u7ba1\u7406\u8005\u5b9b\u3068\u306f\u5225\u306e\u30e1\u30fc\u30eb\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u9001\u308c\u307e\u3059\u3002\u62c5\u5f53\u8005\u3078\u901a\u77e5\u304c\u5c4a\u3044\u3066\u3082\u3001\u81ea\u52d5\u8fd4\u4fe1\u304c\u672a\u7740\u306a\u3089\u3001\u5fdc\u52df\u8005\u3084\u9867\u5ba2\u306f\u300c\u9001\u4fe1\u3067\u304d\u306a\u304b\u3063\u305f\u300d\u3068\u8003\u3048\u3066\u518d\u9001\u3059\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u9006\u306b\u81ea\u52d5\u8fd4\u4fe1\u3060\u3051\u5c4a\u3044\u3066\u7ba1\u7406\u8005\u901a\u77e5\u304c\u6b62\u307e\u308c\u3070\u3001\u554f\u3044\u5408\u308f\u305b\u306f\u53d7\u3051\u4ed8\u3051\u305f\u3064\u3082\u308a\u3067\u653e\u7f6e\u3055\u308c\u307e\u3059\u3002\u4e8c\u3064\u306e\u30e1\u30fc\u30eb\u306f\u5b9b\u5148\u3001\u9001\u4fe1\u5143\u3001\u672c\u6587\u3001\u6dfb\u4ed8\u306e\u6761\u4ef6\u304c\u9055\u3046\u306e\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u30c6\u30b9\u30c8ID\u3092\u540c\u3058\u6848\u4ef6\u3068\u3057\u3066\u8a18\u9332\u3057\u307e\u3059\u3002Mail (2)\u306e\u5b9b\u5148\u306b\u5165\u529b\u8005\u306e\u30e1\u30fc\u30eb\u30bf\u30b0\u3092\u4f7f\u3046\u306a\u3089\u3001\u305d\u306e\u30bf\u30b0\u304c\u5fc5\u9808\u3067\u59a5\u5f53\u306a\u30e1\u30fc\u30eb\u5f62\u5f0f\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u81ea\u52d5\u8fd4\u4fe1\u30e1\u30fc\u30eb\u306e\u672c\u6587\u3078\u3001\u304a\u5ba2\u69d8\u304c\u66f8\u3044\u305f\u81ea\u7531\u8a18\u8ff0\u3092\u5168\u6587\u8ee2\u8f09\u3059\u308b\u904b\u7528\u306f\u614e\u91cd\u306b\u691c\u8a0e\u3057\u307e\u3059\u3002\u8aa4\u5165\u529b\u3084\u6a5f\u5bc6\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u305f\u5834\u5408\u3001\u30e1\u30fc\u30eb\u7d4c\u7531\u3067\u60c5\u5831\u304c\u62e1\u6563\u3059\u308b\u304b\u3089\u3067\u3059\u3002\u53d7\u4ed8\u756a\u53f7\u3084\u554f\u3044\u5408\u308f\u305b\u65e5\u6642\u3001\u8fd4\u4fe1\u306e\u76ee\u5b89\u3001\u4ee3\u66ff\u306e\u9023\u7d61\u5148\u306a\u3069\u3001\u5fc5\u8981\u306a\u60c5\u5831\u3060\u3051\u3092\u6848\u5185\u3059\u308b\u8a2d\u8a08\u3082\u53ef\u80fd\u3067\u3059\u3002\u969c\u5bb3\u306e\u5fa9\u65e7\u8a66\u9a13\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u6587\u9762\u306e\u5909\u66f4\u3092\u540c\u6642\u306b\u884c\u3046\u3068\u539f\u56e0\u304c\u8ffd\u3044\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002\u307e\u305a\u9001\u4fe1\u7d4c\u8def\u3092\u5fa9\u65e7\u3057\u3001\u305d\u306e\u5f8c\u3067\u6587\u9762\u30fb\u904b\u7528\u6539\u5584\u3092\u5225\u306e\u5909\u66f4\u3068\u3057\u3066\u5b9f\u65bd\u3057\u307e\u3059\u3002\u8fd4\u4fe1\u76ee\u5b89\u3092\u5909\u66f4\u3059\u308b\u5834\u5408\u306f\u3001\u5b9f\u969b\u306e\u53d7\u4ed8\u4f53\u5236\u3068\u4e00\u81f4\u3055\u305b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>PHP\u4e92\u63db\u6027\u306e\u554f\u984c\u3092\u7591\u3046\u8a3c\u62e0\u3092\u96c6\u3081\u308b<\/h3>\n<p>PHP\u66f4\u65b0\u5f8c\u306b500\u30a8\u30e9\u30fc\u3001\u7ba1\u7406\u753b\u9762\u306e\u81f4\u547d\u7684\u30a8\u30e9\u30fc\u3001\u30d5\u30a9\u30fc\u30e0\u306eAjax\u5fdc\u7b54\u3067\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u306a\u3089\u3001\u30c6\u30fc\u30de\u3084\u30d7\u30e9\u30b0\u30a4\u30f3\u306ePHP\u4e92\u63db\u6027\u3092\u8abf\u3079\u307e\u3059\u3002WordPress\u306e\u300c\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9\u300d\u306e\u60c5\u5831\u30bf\u30d6\u3067\u306fPHP\u30d0\u30fc\u30b8\u30e7\u30f3\u306a\u3069\u74b0\u5883\u60c5\u5831\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3084WordPress\u306e\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u3067\u3001\u5b9f\u969b\u306b\u30a8\u30e9\u30fc\u3092\u51fa\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u3001\u884c\u3001\u767a\u751f\u6642\u523b\u3092\u7167\u5408\u3057\u307e\u3059\u3002<a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/debug\/debug-wordpress\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u516c\u5f0f\u306e\u30c7\u30d0\u30c3\u30b0\u624b\u9806<\/a>\u306f\u30ed\u30b0\u51fa\u529b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u539f\u5247\u3068\u3057\u3066\u30ed\u30fc\u30ab\u30eb\u3084\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u3067\u8abf\u67fb\u3057\u307e\u3059\u3002\u672c\u756a\u3067\u753b\u9762\u306b\u30a8\u30e9\u30fc\u3092\u8868\u793a\u3059\u308b\u3068\u30d1\u30b9\u7b49\u304c\u6f0f\u308c\u308b\u306e\u3067\u3001<code>WP_DEBUG_DISPLAY<\/code>\u3092\u6709\u52b9\u306b\u3057\u305f\u307e\u307e\u516c\u958b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u30a8\u30e9\u30fc\u3092\u898b\u3064\u3051\u305f\u3089\u3001\u76f4\u8fd1\u3067\u66f4\u65b0\u3057\u305f\u62e1\u5f35\u6a5f\u80fd\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u958b\u767a\u5143\u306e\u5bfe\u5fdc\u60c5\u5831\u3001\u518d\u73fe\u3059\u308b\u64cd\u4f5c\u3092\u30bb\u30c3\u30c8\u3067\u8a18\u9332\u3057\u307e\u3059\u3002PHP\u306e\u65b0\u3057\u3044\u7248\u3067\u975e\u63a8\u5968\u8b66\u544a\u304c\u51fa\u3066\u3082\u3001\u305d\u308c\u3060\u3051\u3067\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u5931\u6557\u306e\u539f\u56e0\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u9006\u306bFatal error\u304c\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u6642\u3060\u3051\u767a\u751f\u3057\u3066\u3044\u308c\u3070\u3001\u95a2\u4fc2\u304c\u5f37\u304f\u306a\u308a\u307e\u3059\u3002\u91cd\u8981\u306a\u306e\u306f\u300c\u6642\u523b\u300d\u300c\u5b9f\u884c\u3057\u305f\u64cd\u4f5c\u300d\u300c\u767a\u751f\u3057\u305f\u30ed\u30b0\u300d\u300c\u505c\u6b62\u3057\u305f\u6a5f\u80fd\u300d\u306e\u56db\u3064\u3092\u7d50\u3073\u4ed8\u3051\u308b\u3053\u3068\u3067\u3059\u3002\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u66f4\u65b0\u3059\u308b\u3068\u6539\u5584\u3059\u308b\u53ef\u80fd\u6027\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u540c\u6642\u306b\u5225\u306e\u5909\u66f4\u304c\u5165\u308b\u305f\u3081\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u691c\u8a3c\u74b0\u5883\u3092\u7528\u610f\u3057\u3066\u304b\u3089\u4e00\u3064\u305a\u3064\u9032\u3081\u307e\u3059\u3002<\/p>\n<h3>\u7af6\u5408\u78ba\u8a8d\u306f\u5b89\u5168\u306a\u7bc4\u56f2\u3067\u3001\u4e00\u3064\u305a\u3064\u884c\u3046<\/h3>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u3084\u30c6\u30fc\u30de\u306e\u7af6\u5408\u304c\u7591\u308f\u3057\u3044\u5834\u5408\u306f\u3001\u53ef\u80fd\u306a\u3089\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3067\u518d\u73fe\u3057\u3001\u30d5\u30a9\u30fc\u30e0\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30ab\u30b9\u30bf\u30e0\u30b3\u30fc\u30c9\u306e\u9806\u306b\u5f71\u97ff\u3092\u5207\u308a\u5206\u3051\u307e\u3059\u3002WordPress\u516c\u5f0f\u306e<a href=\"https:\/\/make.wordpress.org\/support\/handbook\/appendix\/troubleshooting-using-the-health-check\/\" target=\"_blank\" rel=\"noopener 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class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-04-3.webp\" alt=\"\u30d5\u30a9\u30fc\u30e0\u304b\u3089CMS\u30fbSMTP\u30fb\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u30fb\u53d7\u4fe1\u7bb1\u307e\u3067\u306e\u30e1\u30fc\u30eb\u7d4c\u8def\" loading=\"lazy\" decoding=\"async\" \/><\/figure>\n<p><strong>\u7d50\u8ad6\uff1a<\/strong>\u300c\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u306f\u6210\u529f\u300d\u300c\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3082\u6210\u529f\u300d\u3067\u3082\u3001\u53d7\u4fe1\u307e\u3067\u306f\u5225\u3067\u3059\u3002\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u8a8d\u8a3c\u30fb\u914d\u9001\u30ed\u30b0\u3001DNS\u3001\u53d7\u4fe1\u5074\u306e\u9694\u96e2\u3092\u9806\u756a\u306b\u898b\u307e\u3059\u3002\u8a2d\u5b9a\u3092\u5909\u3048\u308b\u524d\u306b\u73fe\u5728\u306e\u9001\u4fe1\u7d4c\u8def\u3092\u78ba\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u9001\u4fe1\u7d4c\u8def\u3092\u4e00\u679a\u306e\u56f3\u306b\u3059\u308b<\/h3>\n<p>\u62c5\u5f53\u8005\u304c\u307e\u305a\u78ba\u8a8d\u3059\u308b\u306e\u306f\u3001WordPress\u306e\u30d5\u30a9\u30fc\u30e0\u304c\u3069\u306e\u4ed5\u7d44\u307f\u3067\u30e1\u30fc\u30eb\u3092\u51fa\u3057\u3066\u3044\u308b\u304b\u3067\u3059\u3002Contact Form 7\u306fWordPress\u306e<code>wp_mail()<\/code>\u3092\u547c\u3073\u307e\u3059\u3002\u305d\u3053\u304b\u3089\u30b5\u30fc\u30d0\u30fc\u6a19\u6e96\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u3078\u9032\u3080\u69cb\u6210\u3082\u3042\u308c\u3070\u3001WP Mail SMTP\u306a\u3069\u304cSMTP\u30b5\u30fc\u30d0\u30fc\u3084\u30e1\u30fc\u30ebAPI\u3078\u63a5\u7d9a\u3059\u308b\u69cb\u6210\u3082\u3042\u308a\u307e\u3059\u3002\u8907\u6570\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u3001\u5b9f\u969b\u306e\u9001\u4fe1\u7d4c\u8def\u304c\u8a2d\u5b9a\u753b\u9762\u306e\u60f3\u50cf\u3068\u9055\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30b5\u30a4\u30c8\u306e\u62c5\u5f53\u8005\u3001\u30b5\u30fc\u30d0\u30fc\u4e8b\u696d\u8005\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u7ba1\u7406\u8005\u304c\u540c\u3058\u56f3\u3092\u898b\u3089\u308c\u308b\u3088\u3046\u3001\u300c\u30d5\u30a9\u30fc\u30e0\u540d\u2192\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u2192\u30b5\u30fc\u30d3\u30b9\u540d\u2192\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u2192\u53d7\u4fe1\u5148\u300d\u3092\u66f8\u304d\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3053\u306e\u56f3\u306b\u306f\u3001\u8a8d\u8a3c\u60c5\u5831\u305d\u306e\u3082\u306e\u3092\u8a18\u8f09\u3057\u307e\u305b\u3093\u3002\u63a5\u7d9a\u5148\u3084\u8a2d\u5b9a\u3092\u78ba\u8a8d\u3059\u308b\u3068\u304d\u3082\u3001API\u30ad\u30fc\u3084SMTP\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u30c1\u30e3\u30c3\u30c8\u3084\u516c\u958b\u30c1\u30b1\u30c3\u30c8\u306b\u8cbc\u3089\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u7ba1\u7406\u8005\u304c\u5f15\u304d\u7d99\u304e\u3067\u304d\u308b\u3088\u3046\u3001\u8a8d\u8a3c\u60c5\u5831\u306e\u4fdd\u7ba1\u5834\u6240\u3068\u7ba1\u7406\u6a29\u9650\u3060\u3051\u3092\u8a18\u9332\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u7d4c\u8def\u304c\u5206\u304b\u3089\u306a\u3044\u3068\u3001PHP\u66f4\u65b0\u5f8c\u306b\u300cmail()\u304c\u4f7f\u3048\u306a\u304f\u306a\u3063\u305f\u300d\u3068\u63a8\u6e2c\u3057\u3066\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u8ffd\u52a0\u3057\u3001\u4e8c\u91cd\u8a2d\u5b9a\u3092\u4f5c\u308b\u5371\u967a\u304c\u3042\u308a\u307e\u3059\u3002\u5148\u306b\u9001\u4fe1\u5143\u3092\u7279\u5b9a\u3057\u3001\u691c\u8a3c\u7528\u30e1\u30fc\u30eb\u306e\u30a8\u30e9\u30fc\u304c\u305d\u306e\u7d4c\u8def\u306e\u3069\u3053\u3067\u51fa\u305f\u304b\u3092\u63a2\u3057\u307e\u3059\u3002<\/p>\n<h3>SMTP\u63a5\u7d9a\u5931\u6557\u3068\u8a8d\u8a3c\u5931\u6557\u3092\u6df7\u540c\u3057\u306a\u3044<\/h3>\n<p>SMTP\u63a5\u7d9a\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084\u62d2\u5426\u306f\u3001\u30db\u30b9\u30c8\u540d\u3001\u30dd\u30fc\u30c8\u3001\u6697\u53f7\u5316\u65b9\u5f0f\u3001\u5916\u5411\u304d\u901a\u4fe1\u306e\u5236\u9650\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u8a31\u53ef\u30ea\u30b9\u30c8\u306a\u3069\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u8a8d\u8a3c\u5931\u6557\u306a\u3089\u3001\u5229\u7528\u3057\u3066\u3044\u308b\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u72b6\u614b\u3001\u30a2\u30d7\u30ea\u30d1\u30b9\u30ef\u30fc\u30c9\u3084OAuth\u306e\u671f\u9650\u3001\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u8a8d\u8a3c\u65b9\u5f0f\u5909\u66f4\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002WP Mail SMTP\u306e<a href=\"https:\/\/wpmailsmtp.com\/docs\/smtp-could-not-connect\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u63a5\u7d9a\u30a8\u30e9\u30fc\u306e\u516c\u5f0f\u624b\u9806<\/a>\u306f\u3001\u63a5\u7d9a\u30a8\u30e9\u30fc\u3068\u8a8d\u8a3c\u8a2d\u5b9a\u306e\u70b9\u691c\u3001\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3067\u306e\u518d\u8a66\u9a13\u3092\u6848\u5185\u3057\u3066\u3044\u307e\u3059\u3002\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u79d8\u5bc6\u60c5\u5831\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3084\u30ed\u30b0\u3092\u4e8b\u696d\u8005\u3078\u9001\u308b\u969b\u306f\u4f0f\u305b\u307e\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306b\u63a5\u7d9a\u3067\u304d\u3066\u3082\u3001\u5dee\u51fa\u4eba\u30a2\u30c9\u30ec\u30b9\u304c\u8a8d\u8a3c\u6e08\u307f\u30c9\u30e1\u30a4\u30f3\u3068\u5408\u308f\u306a\u3044\u5834\u5408\u306f\u62d2\u5426\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3078\u79fb\u3057\u305f\u5f8c\u306b\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u300c\u9001\u4fe1\u5143\u300d\u3060\u3051\u53e4\u3044\u307e\u307e\u6b8b\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u8a2d\u5b9a\u5909\u66f4\u306f\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u7ba1\u7406\u8005\u3068\u5408\u610f\u3057\u3001WordPress\u5074\u3001DNS\u5074\u3001\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u306e\u4e09\u304b\u6240\u3092\u540c\u6642\u306b\u78ba\u8a8d\u3057\u307e\u3059\u3002\u9001\u4fe1\u5f8c\u306f\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3060\u3051\u3067\u306a\u304f\u3001\u5b9f\u30d5\u30a9\u30fc\u30e0\u306e\u7ba1\u7406\u8005\u5b9b\u3068\u81ea\u52d5\u8fd4\u4fe1\u3092\u8a66\u3057\u307e\u3059\u3002\u9001\u4fe1\u5143\u3092\u5909\u3048\u308b\u3068\u8ff7\u60d1\u30e1\u30fc\u30eb\u5224\u5b9a\u3084\u8fd4\u4fe1\u5148\u306e\u6319\u52d5\u3082\u5909\u308f\u308b\u305f\u3081\u3001\u62c5\u5f53\u8005\u306e\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u306e\u898b\u3048\u65b9\u307e\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u30ed\u30b0\u3092\u8aad\u3080\u3068\u304d\u306e\u9806\u5e8f<\/h3>\n<p>\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u753b\u9762\u306b\u300c\u53d7\u3051\u4ed8\u3051\u300d\u300c\u4e00\u6642\u5931\u6557\u300d\u300c\u6052\u4e45\u5931\u6557\u300d\u300c\u914d\u9001\u300d\u300c\u6291\u5236\u300d\u306a\u3069\u306e\u72b6\u614b\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u7528\u8a9e\u3092\u305d\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u516c\u5f0f\u8aac\u660e\u3067\u78ba\u8a8d\u3057\u3066\u8aad\u307f\u307e\u3059\u3002\u4e00\u822c\u306b\u3001\u9001\u4fe1\u8981\u6c42\u3092\u30b5\u30fc\u30d3\u30b9\u304c\u53d7\u3051\u4ed8\u3051\u305f\u3053\u3068\u3068\u3001\u76f8\u624b\u306e\u53d7\u4fe1\u7bb1\u306b\u8868\u793a\u3055\u308c\u305f\u3053\u3068\u306f\u5225\u306e\u51fa\u6765\u4e8b\u3067\u3059\u3002\u307e\u305a\u691c\u8a3cID\u3092\u542b\u3080\u30e1\u30fc\u30eb\u304c\u30b5\u30fc\u30d3\u30b9\u306b\u6e21\u3063\u305f\u304b\u3001\u6b21\u306b\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u76f8\u624b\u5074\u3078\u6e21\u3063\u305f\u304b\u3001\u6700\u5f8c\u306b\u53d7\u4fe1\u5074\u3067\u9694\u96e2\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u8abf\u3079\u307e\u3059\u3002\u3082\u3057\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u5074\u306b\u691c\u8a3cID\u304c\u5168\u304f\u306a\u3044\u306a\u3089\u3001WordPress\u304b\u3089\u305d\u306e\u30b5\u30fc\u30d3\u30b9\u3078\u5c4a\u304f\u524d\u306e\u6bb5\u968e\u3092\u512a\u5148\u3057\u307e\u3059\u3002<\/p>\n<p>\u30ed\u30b0\u306b\u306f\u9001\u4fe1\u5148\u3084\u4ef6\u540d\u304c\u8a18\u9332\u3055\u308c\u308b\u305f\u3081\u3001\u793e\u5916\u30b5\u30dd\u30fc\u30c8\u3078\u8ee2\u9001\u3059\u308b\u524d\u306b\u500b\u4eba\u60c5\u5831\u3092\u96a0\u3057\u307e\u3059\u3002\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u304c\u51fa\u3066\u3044\u308c\u3070\u30b3\u30fc\u30c9\u3068\u6642\u523b\u3060\u3051\u3067\u3082\u8abf\u67fb\u304c\u9032\u307f\u307e\u3059\u304c\u3001\u300c\u8a8d\u8a3c\u5931\u6557\u300d\u3068\u300c\u63a5\u7d9a\u3067\u304d\u306a\u3044\u300d\u306f\u5bfe\u51e6\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u63a5\u7d9a\u3067\u304d\u306a\u3044\u3068\u304d\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5909\u3048\u3066\u3082\u89e3\u6c7a\u3057\u307e\u305b\u3093\u3057\u3001\u8a8d\u8a3c\u5931\u6557\u306a\u306e\u306bWAF\u3092\u6b62\u3081\u3066\u3082\u52b9\u679c\u306f\u671f\u5f85\u3067\u304d\u307e\u305b\u3093\u3002\u30b5\u30fc\u30d3\u30b9\u304c\u4e00\u6642\u5931\u6557\u304b\u3089\u518d\u8a66\u884c\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5373\u5ea7\u306b\u540c\u3058\u554f\u3044\u5408\u308f\u305b\u3092\u624b\u52d5\u3067\u518d\u9001\u3059\u308b\u3068\u91cd\u8907\u5230\u9054\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u81ea\u52d5\u518d\u8a66\u884c\u306e\u6709\u7121\u3068\u6700\u7d42\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u518d\u9001\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>SPF\u30fbDKIM\u30fbDMARC\u306f\u65e2\u5b58\u306e\u6b63\u898f\u9001\u4fe1\u5143\u3092\u6570\u3048\u3066\u304b\u3089\u89e6\u308b<\/h3>\n<p>\u30e1\u30fc\u30eb\u8a8d\u8a3c\u306f\u6280\u8853\u62c5\u5f53\u8005\u3060\u3051\u306e\u554f\u984c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d5\u30a9\u30fc\u30e0\u901a\u77e5\u306e\u307b\u304b\u3001\u6ce8\u6587\u30e1\u30fc\u30eb\u3001\u4e88\u7d04\u901a\u77e5\u3001\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u3001MA\u30c4\u30fc\u30eb\u306a\u3069\u304c\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u3067\u9001\u3063\u3066\u3044\u308c\u3070\u3001DNS\u306e\u5909\u66f4\u306f\u305d\u308c\u3089\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002\u307e\u305a\u300c\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u304c\u3001\u3069\u306e\u5dee\u51fa\u4eba\u30c9\u30e1\u30a4\u30f3\u3067\u9001\u3063\u3066\u3044\u308b\u304b\u300d\u3092\u4e00\u89a7\u5316\u3057\u3001\u5404\u30b5\u30fc\u30d3\u30b9\u306e\u516c\u5f0f\u6307\u793a\u306b\u5f93\u3063\u3066SPF\u30fbDKIM\u3092\u7167\u5408\u3057\u307e\u3059\u3002DMARC\u306e\u30dd\u30ea\u30b7\u30fc\u3092\u5f37\u3081\u308b\u306e\u306f\u3001\u6b63\u898f\u306e\u9001\u4fe1\u5143\u304c\u8a8d\u8a3c\u306b\u901a\u308b\u3068\u5206\u304b\u3063\u3066\u304b\u3089\u3067\u3059\u3002WP Mail SMTP\u306e<a href=\"https:\/\/wpmailsmtp.com\/docs\/how-to-send-a-test-email-in-wp-mail-smtp\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u8cc7\u6599<\/a>\u306f\u3001SPF\u30fbDKIM\u30fbDMARC\u306a\u3069\u306e\u8b66\u544a\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u65b0\u3057\u3044\u30e1\u30fc\u30ebAPI\u3078\u5207\u308a\u66ff\u3048\u305f\u76f4\u5f8c\u306b\u3001\u7ba1\u7406\u8005\u5b9b\u306e\u793e\u5185\u30c9\u30e1\u30a4\u30f3\u3067\u306f\u5c4a\u304f\u304c\u3001\u9867\u5ba2\u5411\u3051\u306e\u30d5\u30ea\u30fc\u30e1\u30fc\u30eb\u5b9b\u306b\u306f\u5c4a\u304b\u306a\u3044\u5834\u5408\u3001\u914d\u9001\u30ed\u30b0\u3068\u8a8d\u8a3c\u7d50\u679c\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u3053\u308c\u3060\u3051\u3067PHP\u306e\u4e0d\u5177\u5408\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002\u53d7\u4fe1\u5074\u306e\u9694\u96e2\u3084\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u3082\u540c\u3058\u691c\u8a3cID\u3092\u4f7f\u3044\u3001\u898b\u3064\u304b\u3063\u305f\u5834\u6240\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8ff7\u60d1\u30e1\u30fc\u30eb\u304b\u3089\u300c\u8a31\u53ef\u300d\u306b\u3059\u308b\u3060\u3051\u3067\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u306e\u8a8d\u8a3c\u4e0d\u5099\u3092\u6839\u672c\u89e3\u6c7a\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u53d7\u4fe1\u5074\u306e\u66ab\u5b9a\u30eb\u30fc\u30eb\u3068\u9001\u4fe1\u5074\u306e\u6052\u4e45\u5bfe\u5fdc\u3092\u5206\u3051\u3066\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n<h3>\u554f\u3044\u5408\u308f\u305b\u3092\u9003\u3057\u305f\u53ef\u80fd\u6027\u3092\u8abf\u3079\u308b<\/h3>\n<p>\u969c\u5bb3\u304c\u89e3\u6d88\u3057\u3066\u3082\u300c\u4eca\u65e5\u306e\u30c6\u30b9\u30c8\u304c\u5c4a\u3044\u305f\u300d\u3067\u7d42\u308f\u3089\u305b\u307e\u305b\u3093\u3002\u969c\u5bb3\u958b\u59cb\u6642\u523b\u304b\u3089\u5fa9\u65e7\u6642\u523b\u307e\u3067\u306b\u3001\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u304c\u4f55\u4ef6\u3042\u3063\u305f\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30d5\u30a9\u30fc\u30e0\u5074\u306b\u4fdd\u5b58\u6a5f\u80fd\u3084\u5916\u90e8\u9023\u643a\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u8a72\u5f53\u671f\u9593\u306e\u53d7\u4ed8\u8a18\u9332\u3068\u30e1\u30fc\u30eb\u53d7\u4fe1\u8a18\u9332\u3092\u7a81\u304d\u5408\u308f\u305b\u307e\u3059\u3002\u4fdd\u5b58\u6a5f\u80fd\u304c\u306a\u3044\u5834\u5408\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u3084\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30ed\u30b0\u304b\u3089\u4ef6\u6570\u3092\u63a8\u5b9a\u3067\u304d\u308b\u304b\u3092\u7ba1\u7406\u8005\u3078\u78ba\u8a8d\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u306e\u4e00\u884c\u3092\u305d\u306e\u307e\u307e\u4e00\u4ef6\u306e\u554f\u3044\u5408\u308f\u305b\u3068\u6570\u3048\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u518d\u9001\u3084\u30b9\u30d1\u30e0\u3001\u78ba\u8a8d\u753b\u9762\u3060\u3051\u306e\u30a2\u30af\u30bb\u30b9\u304c\u6df7\u3056\u308a\u307e\u3059\u3002\u78ba\u5b9a\u4ef6\u6570\u3068\u63a8\u5b9a\u4ef6\u6570\u3092\u5206\u3051\u3001\u6f0f\u308c\u304c\u7591\u308f\u308c\u308b\u9867\u5ba2\u3078\u306e\u9023\u7d61\u306f\u500b\u4eba\u60c5\u5831\u4fdd\u8b77\u306e\u65b9\u91dd\u306b\u5f93\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30a9\u30fc\u30e0\u306e\u9001\u4fe1\u304c\u5931\u6557\u3057\u3066\u3044\u305f\u671f\u9593\u306f\u3001\u9867\u5ba2\u306e\u5165\u529b\u5185\u5bb9\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30ed\u30b0\u306b\u9867\u5ba2\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3084\u672c\u6587\u304c\u6b8b\u3063\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u3001\u5fa9\u65e7\u76ee\u7684\u306b\u5fc5\u8981\u306a\u62c5\u5f53\u8005\u3060\u3051\u304c\u30a2\u30af\u30bb\u30b9\u3057\u3001\u4fdd\u7ba1\u671f\u9650\u3092\u6c7a\u3081\u307e\u3059\u3002\u904b\u7528\u4e0a\u3001\u901a\u77e5\u30e1\u30fc\u30eb\u3060\u3051\u306b\u983c\u3063\u3066\u3044\u305f\u306a\u3089\u3001\u4eca\u5f8c\u306f\u9069\u5207\u306a\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3092\u5099\u3048\u305f\u53d7\u4ed8\u5c65\u6b74\u3084CRM\u9023\u643a\u3092\u691c\u8a0e\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u500b\u4eba\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u4ed5\u7d44\u307f\u3092\u5897\u3084\u3059\u3053\u3068\u306b\u306f\u6f0f\u3048\u3044\u30ea\u30b9\u30af\u3082\u3042\u308a\u307e\u3059\u3002\u4fdd\u5b58\u5148\u3001\u6a29\u9650\u3001\u4fdd\u5b58\u671f\u9593\u3001\u524a\u9664\u624b\u9806\u3092\u6c7a\u3081\u305f\u3046\u3048\u3067\u5c0e\u5165\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u30ed\u30b0\u304c\u306a\u3044\u5834\u5408\u306b\u300c\u6f0f\u308c\u306a\u3057\u300d\u3068\u8a00\u308f\u306a\u3044<\/h3>\n<p>\u30d5\u30a9\u30fc\u30e0\u306b\u9001\u4fe1\u5c65\u6b74\u304c\u306a\u304f\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306b\u3082\u904e\u53bb\u30ed\u30b0\u304c\u6b8b\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u904e\u53bb\u306e\u9001\u4fe1\u6570\u3092\u6b63\u78ba\u306b\u5fa9\u5143\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306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class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-05-3.webp\" alt=\"\u8a18\u9332\u30fb\u5909\u66f4\u30fb\u8a66\u9a13\u9001\u4fe1\u30fb\u53d7\u4fe1\u78ba\u8a8d\u3068\u4e0d\u5177\u5408\u6642\u306e\u5207\u308a\u623b\u3057\" loading=\"lazy\" decoding=\"async\" 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class=\"wp-block-image size-full\"><img src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/10\/section-06-1.webp\" alt=\"\u6b21\u56de\u306ePHP\u66f4\u65b0\u524d\u306e\u8a18\u9332\u30fb\u691c\u8a3c\u30fb\u672c\u756a\u78ba\u8a8d\u30fb\u76e3\u8996\u306e\u5faa\u74b0\" loading=\"lazy\" decoding=\"async\" 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\u3092\u5b8c\u4e86\u3068\u5224\u65ad\u3059\u308b\u306e\u306f\u3001\u8868\u793a\u3001\u64cd\u4f5c\u3001\u914d\u9001\u3001\u696d\u52d9\u4e0a\u306e\u53d7\u4fe1\u307e\u3067\u78ba\u8a8d\u3057\u305f\u5f8c\u3067\u3059\u3002<\/p>\n<h3>Q. PHP\u3092\u66f4\u65b0\u3057\u305f\u76f4\u5f8c\u306b\u6b62\u307e\u3063\u305f\u306a\u3089\u3001PHP\u3092\u623b\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u3059\u3050\u306b\u306f\u623b\u3057\u307e\u305b\u3093\u3002\u307e\u305a\u30d5\u30a9\u30fc\u30e0\u72b6\u614b\u3001\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30c6\u30b9\u30c8\u3001PHP\u30a8\u30e9\u30fc\u30ed\u30b0\u3001\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002PHP\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fee\u6b63\u7248\u3092\u65e7\u7248\u3078\u623b\u3059\u3068\u30ea\u30b9\u30af\u304c\u3042\u308b\u305f\u3081\u3001\u4e92\u63db\u6027\u3084\u8a2d\u5b9a\u306e\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3001\u53ef\u80fd\u306a\u3089\u4fee\u6b63\u7248\u3092\u7dad\u6301\u3057\u305f\u307e\u307e\u76f4\u3057\u307e\u3059\u3002\u30b5\u30a4\u30c8\u5168\u4f53\u304c\u505c\u6b62\u3059\u308b\u306a\u3069\u7dca\u6025\u5ea6\u304c\u9ad8\u3044\u5834\u5408\u3067\u3082\u3001\u4e8b\u696d\u8005\u3068\u516c\u958b\u7bc4\u56f2\u30fb\u671f\u9593\u30fb\u66ab\u5b9a\u5bfe\u7b56\u30fb\u518d\u66f4\u65b0\u65e5\u3092\u6c7a\u3081\u3066\u5224\u65ad\u3057\u307e\u3059\u3002\u300c\u66f4\u65b0\u76f4\u5f8c\u300d\u3068\u3044\u3046\u6642\u9593\u306e\u4e00\u81f4\u306f\u8abf\u67fb\u306e\u624b\u639b\u304b\u308a\u3067\u3059\u304c\u3001\u305d\u308c\u3060\u3051\u3067\u306f\u56e0\u679c\u95a2\u4fc2\u3092\u793a\u3057\u307e\u305b\u3093\u3002<\/p>\n<h3>Q. Contact Form 7\u3067\u7dd1\u8272\u306e\u5b8c\u4e86\u8868\u793a\u304c\u51fa\u3066\u3044\u307e\u3059\u3002\u5fa9\u65e7\u6e08\u307f\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u307e\u3060\u3067\u3059\u3002\u7dd1\u8272\u306f\u9001\u4fe1\u51e6\u7406\u304c\u6210\u529f\u3057\u305f\u72b6\u614b\u3067\u3042\u308a\u3001\u53d7\u4ed8\u62c5\u5f53\u306e\u53d7\u4fe1\u7bb1\u3078\u5c4a\u3044\u305f\u4fdd\u8a3c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u7ba1\u7406\u8005\u5b9b\u3068\u81ea\u52d5\u8fd4\u4fe1\u3092\u5b9f\u969b\u306b\u53d7\u3051\u53d6\u308a\u3001\u8ff7\u60d1\u30e1\u30fc\u30eb\u3084\u9694\u96e2\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6dfb\u4ed8\u3084\u9577\u6587\u304c\u696d\u52d9\u4e0a\u5fc5\u8981\u306a\u3089\u3001\u305d\u306e\u6761\u4ef6\u3082\u8a66\u3057\u307e\u3059\u3002\u7dd1\u67a0\u3067\u672a\u7740\u306e\u5834\u5408\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u5b9b\u5148\u3001\u53d7\u4fe1\u5074\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u3001\u914d\u9001\u30ed\u30b0\u3001SPF\u30fbDKIM\u30fbDMARC\u306a\u3069\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u53d7\u4ed8\u5c65\u6b74\u304c\u5225\u306b\u3042\u308b\u306a\u3089\u3001\u540c\u3058\u691c\u8a3cID\u304c\u6b8b\u308b\u304b\u3082\u7167\u5408\u3057\u307e\u3059\u3002<\/p>\n<h3>Q. \u8d64\u67a0\u3068\u30aa\u30ec\u30f3\u30b8\u67a0\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>Contact Form 7\u306e\u516c\u5f0fFAQ\u3067\u306f\u3001\u8d64\u67a0\u306f<code>wp_mail()<\/code>\u306b\u3088\u308b\u30e1\u30fc\u30eb\u9001\u4fe1\u306e\u5931\u6557\u3001\u30aa\u30ec\u30f3\u30b8\u67a0\u306f\u30b9\u30d1\u30e0\u5224\u5b9a\u3092\u793a\u3057\u307e\u3059\u3002\u540c\u3058\u3088\u3046\u306a\u30a8\u30e9\u30fc\u6587\u3067\u3082\u5bfe\u51e6\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u30aa\u30ec\u30f3\u30b8\u67a0\u306a\u3089Akismet\u3001CAPTCHA\u3001\u305d\u306e\u4ed6\u306e\u30b9\u30d1\u30e0\u5bfe\u7b56\u306e\u5224\u5b9a\u3084\u901a\u4fe1\u3092\u78ba\u8a8d\u3057\u3001\u8d64\u67a0\u306a\u3089\u30e1\u30fc\u30eb\u8a2d\u5b9a\u3068\u9001\u4fe1\u7d4c\u8def\u3092\u8abf\u3079\u307e\u3059\u3002\u8272\u3084\u753b\u9762\u8868\u793a\u304c\u30c6\u30fc\u30de\u3067\u5909\u308f\u3063\u3066\u3044\u308b\u30b5\u30a4\u30c8\u3067\u306f\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u72b6\u614b\u3084\u30ed\u30b0\u3092\u8ffd\u52a0\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002\u8272\u3060\u3051\u3067\u8a2d\u5b9a\u3092\u65ad\u5b9a\u3057\u306a\u3044\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h3>Q. WP Mail SMTP\u306e\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u5c4a\u304d\u307e\u3059\u304c\u3001\u30d5\u30a9\u30fc\u30e0\u3060\u3051\u5c4a\u304d\u307e\u305b\u3093\u3002<\/h3>\n<p>\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u5171\u901a\u7d4c\u8def\u304c\u52d5\u3044\u3066\u3044\u308b\u53ef\u80fd\u6027\u306f\u9ad8\u307e\u308a\u307e\u3059\u304c\u3001\u30d5\u30a9\u30fc\u30e0\u5074\u306e\u8a2d\u5b9a\u3084\u500b\u5225\u306e\u9001\u4fe1\u6761\u4ef6\u306f\u6b8b\u308a\u307e\u3059\u3002Contact Form 7\u306e\u9001\u4fe1\u5148\u3001\u9001\u4fe1\u5143\u3001\u8ffd\u52a0\u30d8\u30c3\u30c0\u30fc\u3001\u6dfb\u4ed8\u3001Mail (2)\u3001\u8a2d\u5b9a\u691c\u8a3c\u306e\u8b66\u544a\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u5b9f\u30d5\u30a9\u30fc\u30e0\u3060\u3051\u3067\u4f7f\u3046\u5dee\u51fa\u4eba\u3084\u5b9b\u5148\u304c\u3001\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3068\u9055\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u53d7\u4fe1\u5148\u3092\u4e00\u6642\u7684\u306b\u691c\u8a3c\u7528\u306e\u793e\u5185\u30a2\u30c9\u30ec\u30b9\u3078\u5909\u3048\u308b\u5834\u5408\u3082\u3001\u5909\u66f4\u524d\u306e\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3057\u3001\u500b\u4eba\u60c5\u5831\u306e\u8ee2\u9001\u5148\u3092\u5897\u3084\u3055\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u539f\u56e0\u304c\u5206\u304b\u3063\u305f\u3089\u672c\u756a\u306e\u5b9b\u5148\u3078\u623b\u3057\u3066\u518d\u8a66\u9a13\u3057\u307e\u3059\u3002<\/p>\n<h3>Q. \u30d5\u30a9\u30fc\u30e0\u3082\u7ba1\u7406\u753b\u9762\u3082500\u30a8\u30e9\u30fc\u3067\u3059\u3002\u4f55\u3092\u6e21\u3057\u3066\u76f8\u8ac7\u3057\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u30b5\u30a4\u30c8URL\u3001\u969c\u5bb3\u6642\u523b\u3001PHP\u306e\u524d\u5f8c\u306e\u7248\u3001\u76f4\u8fd1\u306eWordPress\u30fb\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30c6\u30fc\u30de\u66f4\u65b0\u3001\u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u8a72\u5f53\u884c\u3092\u30b5\u30fc\u30d0\u30fc\u4f1a\u793e\u3068\u4fdd\u5b88\u62c5\u5f53\u306b\u4f1d\u3048\u307e\u3059\u3002\u9867\u5ba2\u60c5\u5831\u3084\u8a8d\u8a3c\u60c5\u5831\u304c\u542b\u307e\u308c\u308b\u30ed\u30b0\u3092\u305d\u306e\u307e\u307e\u516c\u958b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002WordPress\u306e\u30ea\u30ab\u30d0\u30ea\u30fc\u30e2\u30fc\u30c9\u3084\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u304b\u3089\u5fa9\u65e7\u3067\u304d\u308b\u304b\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002PHP\u7248\u3092\u623b\u3059\u5224\u65ad\u306f\u3001\u8106\u5f31\u6027\u4fee\u6b63\u7248\u3092\u5916\u3059\u30ea\u30b9\u30af\u3082\u542b\u3081\u3066\u5408\u610f\u3057\u307e\u3059\u3002WordPress\u516c\u5f0f\u306f<a href=\"https:\/\/wordpress.org\/documentation\/article\/faq-troubleshooting\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u7ba1\u7406\u753b\u9762\u3078\u5165\u308c\u306a\u3044\u3068\u304d\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u5207\u308a\u5206\u3051<\/a>\u3082\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>Q. \u6bce\u56de\u624b\u4f5c\u696d\u3067\u9001\u4fe1\u3092\u78ba\u8a8d\u3059\u308b\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/h3>\n<p>\u5b9a\u671f\u70b9\u691c\u3092\u4ed5\u7d44\u307f\u306b\u3067\u304d\u307e\u3059\u3002\u66f4\u65b0\u524d\u306e\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u8a66\u9a13\u3001\u66f4\u65b0\u5f8c\u306e\u516c\u958b\u30d5\u30a9\u30fc\u30e0\u306e\u5c11\u6570\u30c6\u30b9\u30c8\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u969c\u5bb3\u901a\u77e5\u3001\u53d7\u4ed8\u4ef6\u6570\u306e\u7570\u5e38\u691c\u77e5\u3001\u53d7\u4fe1\u7bb1\u306e\u904b\u7528\u78ba\u8a8d\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002\u81ea\u52d5\u76e3\u8996\u3092\u5c0e\u5165\u3059\u308b\u5834\u5408\u306f\u3001\u30d5\u30a9\u30fc\u30e0\u306b\u4e0d\u8981\u306a\u500b\u4eba\u60c5\u5831\u3092\u9001\u3089\u306a\u3044\u3053\u3068\u3001\u76e3\u8996\u7528\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3092\u5897\u3084\u3055\u306a\u3044\u3053\u3068\u3001\u9001\u4fe1\u4e0a\u9650\u3092\u8d85\u3048\u306a\u3044\u3053\u3068\u3092\u8a2d\u8a08\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u76e3\u8996\u3060\u3051\u3067\u300c\u9867\u5ba2\u306e\u30e1\u30fc\u30eb\u304c\u5fc5\u305a\u5c4a\u304f\u300d\u3068\u306f\u8a00\u3048\u306a\u3044\u305f\u3081\u3001\u53d7\u4ed8\u62c5\u5f53\u304c\u554f\u3044\u5408\u308f\u305b\u4ef6\u6570\u3068\u5b9f\u969b\u306e\u696d\u52d9\u3092\u5b9a\u671f\u7684\u306b\u7167\u5408\u3057\u307e\u3059\u3002\u66f4\u65b0\u624b\u9806\u306b\u306f\u3001\u7ba1\u7406\u8005\u5b9b\u3068\u81ea\u52d5\u8fd4\u4fe1\u306e\u4e21\u65b9\u306e\u691c\u53ce\u3092\u5fc5\u305a\u5165\u308c\u307e\u3059\u3002<\/p>\n<h3>Q. SMTP\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u8ffd\u52a0\u3059\u308c\u3070\u5fc5\u305a\u76f4\u308a\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u5fc5\u305a\u3057\u3082\u76f4\u308a\u307e\u305b\u3093\u3002\u30e1\u30fc\u30eb\u30c6\u30b9\u30c8\u3082\u5b9f\u30d5\u30a9\u30fc\u30e0\u3082\u5931\u6557\u3057\u3001\u539f\u56e0\u304c\u73fe\u5728\u306e\u9001\u4fe1\u7d4c\u8def\u306b\u3042\u308b\u3068\u5206\u304b\u3063\u305f\u3068\u304d\u306b\u306f\u3001\u8a8d\u8a3c\u3055\u308c\u305fSMTP\u3084\u30e1\u30fc\u30ebAPI\u306e\u5c0e\u5165\u304c\u9078\u629e\u80a2\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30d5\u30a9\u30fc\u30e0\u81ea\u4f53\u304c\u8aad\u307f\u8fbc\u307e\u308c\u306a\u3044\u3001\u30b9\u30d1\u30e0\u5224\u5b9a\u3067\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3001\u9001\u4fe1\u5148\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u3001\u53d7\u4fe1\u5074\u304c\u9694\u96e2\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u8ffd\u52a0\u3060\u3051\u3067\u306f\u89e3\u6c7a\u3057\u307e\u305b\u3093\u3002\u65e2\u5b58\u306e\u9001\u4fe1\u30d7\u30e9\u30b0\u30a4\u30f3\u3068\u6a5f\u80fd\u304c\u91cd\u8907\u3059\u308b\u3068\u3001\u4e8c\u3064\u306e\u7d4c\u8def\u304c\u7af6\u5408\u3059\u308b\u6050\u308c\u3082\u3042\u308a\u307e\u3059\u3002\u5c0e\u5165\u524d\u306b\u3001\u73fe\u5728\u306e\u9001\u4fe1\u65b9\u5f0f\u3068\u969c\u5bb3\u306e\u4f4d\u7f6e\u3092\u56f3\u306b\u3057\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3001\u8cbb\u7528\u3001\u9001\u4fe1\u4e0a\u9650\u3001\u30ed\u30b0\u4fdd\u5b58\u671f\u9593\u3001\u969c\u5bb3\u6642\u306e\u4ee3\u66ff\u624b\u6bb5\u3092\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u65b0\u3057\u3044\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u5834\u5408\u306f\u3001\u9867\u5ba2\u60c5\u5831\u304c\u30b5\u30fc\u30d3\u30b9\u3078\u6e21\u308b\u305f\u3081\u3001\u5951\u7d04\u30fb\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u4e0a\u306e\u6761\u4ef6\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002\u904b\u7528\u62c5\u5f53\u8005\u304c\u30c8\u30fc\u30af\u30f3\u66f4\u65b0\u3084\u969c\u5bb3\u901a\u77e5\u3092\u53d7\u3051\u53d6\u308c\u308b\u304b\u307e\u3067\u6c7a\u3081\u306a\u3051\u308c\u3070\u3001\u6b21\u306e\u8a8d\u8a3c\u5931\u52b9\u3067\u540c\u3058\u554f\u984c\u304c\u8d77\u3053\u308a\u307e\u3059\u3002\u5c0e\u5165\u306e\u5b8c\u4e86\u6761\u4ef6\u306f\u30c6\u30b9\u30c8\u6a5f\u80fd\u304c\u4e00\u901a\u6210\u529f\u3059\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u516c\u958b\u30d5\u30a9\u30fc\u30e0\u306e\u901a\u77e5\u3001\u81ea\u52d5\u8fd4\u4fe1\u3001\u91cd\u8981\u306a\u30b5\u30a4\u30c8\u30e1\u30fc\u30eb\u304c\u671f\u5f85\u3069\u304a\u308a\u5c4a\u304d\u3001\u65e7\u7d4c\u8def\u306e\u4e0d\u8981\u306a\u8a2d\u5b9a\u304c\u6574\u7406\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<h3>Q. \u30aa\u30ec\u30f3\u30b8\u67a0\u304c\u51fa\u308b\u5834\u5408\u3001\u30b9\u30d1\u30e0\u5bfe\u7b56\u3092\u5168\u90e8\u6b62\u3081\u3066\u3082\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u5168\u90e8\u3092\u672c\u756a\u3067\u6b62\u3081\u308b\u524d\u306b\u3001\u3069\u306e\u5224\u5b9a\u304c\u691c\u8a3c\u7528\u9001\u4fe1\u3092\u6b62\u3081\u305f\u304b\u78ba\u8a8d\u3057\u307e\u3059\u3002Contact Form 7\u306f\u30aa\u30ec\u30f3\u30b8\u67a0\u3092\u30b9\u30d1\u30e0\u5224\u5b9a\u306e\u72b6\u614b\u3068\u3057\u3066\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u304c\u3001reCAPTCHA\u3001Akismet\u3001\u8ffd\u52a0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30e9\u30b0\u30a4\u30f3\u306a\u3069\u5019\u88dc\u304c\u3042\u308a\u307e\u3059\u3002\u516c\u5f0f\u306e<a href=\"https:\/\/contactform7.com\/faq-about-recaptcha-v3\/\" target=\"_blank\" rel=\"noopener noreferrer\">reCAPTCHA FAQ<\/a>\u306f\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u672a\u8aad\u307f\u8fbc\u307f\u3084\u4e0d\u5177\u5408\u304c\u5f71\u97ff\u3059\u308b\u5834\u5408\u3082\u793a\u3057\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u901a\u4fe1\u3001\u30b9\u30d1\u30e0\u5bfe\u7b56\u306e\u30ed\u30b0\u3001\u6700\u8fd1\u306e\u8a2d\u5b9a\u5909\u66f4\u3092\u898b\u3066\u3001\u5bfe\u8c61\u3092\u7d5e\u3063\u3066\u8abf\u3079\u3066\u304f\u3060\u3055\u3044\u3002\u30b9\u30d1\u30e0\u5bfe\u7b56\u3092\u5e83\u304f\u6b62\u3081\u308b\u3068\u8ff7\u60d1\u9001\u4fe1\u304c\u5897\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30c6\u30b9\u30c8\u74b0\u5883\u3084\u6642\u9593\u3092\u9650\u3063\u305f\u8abf\u67fb\u3068\u3057\u3001\u5fa9\u65e7\u5f8c\u306f\u4fdd\u8b77\u304c\u6709\u52b9\u306a\u72b6\u614b\u3067\u5b9f\u30d5\u30a9\u30fc\u30e0\u3092\u691c\u53ce\u3057\u307e\u3059\u3002<\/p>\n<h3>Q. 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2026\u5e74\u306ePHP\u8106\u5f31\u6027\u304c\u3053\u306e\u30e1\u30fc\u30eb\u969c\u5bb3\u3092\u8d77\u3053\u3057\u305f\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u6271\u3046\u75c7\u72b6\u3060\u3051\u3067\u306f\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002PHP\u516c\u5f0f\u304c\u516c\u958b\u3057\u305f\u306e\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fee\u6b63\u306e\u5fc5\u8981\u6027\u3067\u3042\u308a\u3001\u300c\u30d5\u30a9\u30fc\u30e0\u30e1\u30fc\u30eb\u304c\u505c\u6b62\u3059\u308b\u300d\u3068\u3044\u3046\u4e00\u822c\u7684\u306a\u75c7\u72b6\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u66f4\u65b0\u306b\u4f34\u3046\u4e92\u63db\u6027\u3084\u8a2d\u5b9a\u5909\u66f4\u304c\u5f71\u97ff\u3059\u308b\u53ef\u80fd\u6027\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u5b9f\u969b\u306e\u30a8\u30e9\u30fc\u30ed\u30b0\u3068\u5909\u66f4\u5c65\u6b74\u3067\u8a3c\u660e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u5fdc\u3068\u30e1\u30fc\u30eb\u969c\u5bb3\u306e\u8a3a\u65ad\u3092\u6df7\u540c\u3059\u308b\u3068\u3001\u4fee\u6b63\u7248\u306e\u9069\u7528\u3092\u305f\u3081\u3089\u3063\u305f\u308a\u3001\u7121\u95a2\u4fc2\u306a\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u305f\u308a\u3057\u307e\u3059\u3002\u307e\u305a\u5b89\u5168\u306a\u7248\u3092\u7dad\u6301\u3057\u3001\u969c\u5bb3\u7b87\u6240\u3092\u5207\u308a\u5206\u3051\u308b\u306e\u304c\u5b9f\u52d9\u7684\u3067\u3059\u3002<\/p>\n<h3>\u307e\u3068\u3081\uff1a\u554f\u3044\u5408\u308f\u305b\u304c\u5c4a\u304f\u3053\u3068\u307e\u3067\u78ba\u8a8d\u3057\u3066\u5b8c\u4e86\u306b\u3059\u308b<\/h3>\n<p>WordPress\u306e\u30d5\u30a9\u30fc\u30e0\u5fa9\u65e7\u306f\u3001\u753b\u9762\u306e\u6210\u529f\u8868\u793a\u3060\u3051\u3067\u306f\u7d42\u308f\u308a\u307e\u305b\u3093\u3002\u9001\u4fe1\u7d4c\u8def\u3001\u53d7\u4fe1\u7bb1\u3001\u7ba1\u7406\u8005\u901a\u77e5\u3001\u81ea\u52d5\u8fd4\u4fe1\u3001\u53d7\u4ed8\u5c65\u6b74\u3001\u4ed6\u306e\u91cd\u8981\u30e1\u30fc\u30eb\u3092\u3001\u540c\u3058\u691c\u8a3cID\u3067\u78ba\u8a8d\u3057\u3066\u521d\u3081\u3066\u696d\u52d9\u3068\u3057\u3066\u5fa9\u65e7\u3057\u307e\u3059\u3002PHP\u66f4\u65b0\u5f8c\u306b\u554f\u984c\u304c\u51fa\u3066\u3082\u3001\u8106\u5f31\u6027\u3084\u4fee\u6b63\u7248\u304c\u76f4\u63a5\u306e\u539f\u56e0\u3068\u6c7a\u3081\u3064\u3051\u305a\u3001\u5909\u66f4\u5c65\u6b74\u3068\u30ed\u30b0\u3067\u8abf\u3079\u3066\u304f\u3060\u3055\u3044\u3002\u4ee3\u66ff\u7a93\u53e3\u3092\u5148\u306b\u6848\u5185\u3057\u3001\u6700\u5c0f\u306e\u5909\u66f4\u3092\u4e00\u3064\u305a\u3064\u691c\u8a3c\u3059\u308c\u3070\u3001\u554f\u3044\u5408\u308f\u305b\u6a5f\u4f1a\u640d\u5931\u3068\u5b89\u5168\u6027\u306e\u4f4e\u4e0b\u3092\u6291\u3048\u3089\u308c\u307e\u3059\u3002\u6b21\u56de\u306ePHP\u3084\u30e1\u30fc\u30eb\u8a2d\u5b9a\u306e\u5909\u66f4\u306b\u5099\u3048\u3001\u3053\u306e\u8a18\u4e8b\u306e\u691c\u53ce\u8868\u3068\u4e8b\u696d\u8005\u3078\u306e\u9023\u7d61\u6587\u3092\u793e\u5185\u624b\u9806\u3078\u53d6\u308a\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u7279\u306b\u793e\u5185\u3067\u5f15\u304d\u7d99\u3050\u3068\u304d\u306f\u3001\u969c\u5bb3\u539f\u56e0\u3060\u3051\u3067\u306a\u304f\u300c\u3069\u306e\u8a3c\u62e0\u3067\u539f\u56e0\u3068\u5224\u65ad\u3057\u305f\u304b\u300d\u3092\u6b8b\u3057\u307e\u3059\u3002\u30d5\u30a9\u30fc\u30e0\u306e\u8a2d\u5b9a\u753b\u9762\u3001\u30c6\u30b9\u30c8\u9001\u4fe1ID\u3001\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u7d50\u679c\u3001\u53d7\u4fe1\u5074\u306e\u7d50\u679c\u3001\u5909\u66f4\u3057\u305f\u7b87\u6240\u3001\u5207\u623b\u3057\u65b9\u6cd5\u3001\u6700\u5f8c\u306b\u78ba\u8a8d\u3057\u305f\u65e5\u6642\u304c\u3042\u308c\u3070\u3001\u6b21\u306e\u62c5\u5f53\u8005\u3082\u540c\u3058\u969c\u5bb3\u3092\u77ed\u6642\u9593\u3067\u8abf\u3079\u3089\u308c\u307e\u3059\u3002\u8cc7\u6599\u306b\u9867\u5ba2\u60c5\u5831\u3084\u79d8\u5bc6\u60c5\u5831\u3092\u5165\u308c\u305a\u3001\u6a29\u9650\u306e\u3042\u308b\u62c5\u5f53\u8005\u3060\u3051\u304c\u898b\u3089\u308c\u308b\u5834\u6240\u3067\u7ba1\u7406\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5fa9\u65e7\u5f8c\u4e00\u9031\u9593\u307b\u3069\u306f\u53d7\u4ed8\u4ef6\u6570\u3068\u30e1\u30fc\u30eb\u914d\u9001\u306e\u50be\u5411\u3092\u78ba\u8a8d\u3057\u3001\u518d\u767a\u304c\u306a\u3044\u304b\u3092\u898b\u307e\u3059\u3002\u4ef6\u6570\u306e\u5909\u52d5\u3060\u3051\u3067\u969c\u5bb3\u3092\u65ad\u5b9a\u305b\u305a\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u30c6\u30b9\u30c8\u3068\u5b9f\u969b\u306e\u554f\u3044\u5408\u308f\u305b\u696d\u52d9\u3092\u5408\u308f\u305b\u3066\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n<p>\u53d7\u4ed8\u62c5\u5f53\u304c\u4ea4\u4ee3\u3059\u308b\u5834\u5408\u3082\u3001\u4ee3\u66ff\u7a93\u53e3\u3068\u672a\u89e3\u6c7a\u306e\u554f\u3044\u5408\u308f\u305b\u3092\u5f15\u304d\u7d99\u304e\u307e\u3059\u3002\u6280\u8853\u7684\u306a\u5fa9\u65e7\u3068\u9867\u5ba2\u5bfe\u5fdc\u306e\u5b8c\u4e86\u306f\u5225\u3067\u3059\u3002<\/p>\n<h2>AI\u30b9\u30ad\u30eb\u3067\u3001\u672a\u6765\u306e\u81ea\u5206\u3092\u30a2\u3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class=\"wp-block-image aligncenter size-large\"><a href=\"https:\/\/s.lmes.jp\/landing-qr\/2010578884-C5To3Fmv?uLand=phzKXf\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/withai-cta-banner.jpg\" alt=\"\u4eca\u306a\u3089\u5b8c\u5168\u7121\u6599\u3067AI\u3092\u5b66\u3079\u308b\uff01WithAI\" width=\"1254\" height=\"1254\"><\/a><\/figure>\n<h3>\u4eca\u306a\u3089\u5b8c\u5168\u7121\u6599\u3067AI\u3092\u5b66\u3079\u308b\uff01<\/h3>\n<p>\u30d5\u30a9\u30fc\u30e0\u306e\u78ba\u8a8d\u9805\u76ee\u3001\u554f\u3044\u5408\u308f\u305b\u5bfe\u5fdc\u306e\u8a18\u9332\u3001\u95a2\u4fc2\u8005\u3078\u306e\u9023\u7d61\u6587\u306e\u6574\u7406\u306b\u306f\u3001AI\u306e\u6d3b\u7528\u304c\u5f79\u7acb\u3061\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u9867\u5ba2\u60c5\u5831\u3084\u8a8d\u8a3c\u60c5\u5831\u3092\u305d\u306e\u307e\u307e\u5165\u529b\u305b\u305a\u3001\u6700\u7d42\u5224\u65ad\u3068\u516c\u958b\u5185\u5bb9\u306f\u62c5\u5f53\u8005\u304c\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5b66\u3073\u76f4\u3057\u3092\u59cb\u3081\u305f\u3044\u65b9\u306f\u3001<a href=\"https:\/\/s.lmes.jp\/landing-qr\/2010578884-C5To3Fmv?uLand=phzKXf\" target=\"_blank\" rel=\"noopener noreferrer\">WithAI\u306e\u7121\u6599\u5b66\u7fd2\u6848\u5185<\/a>\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><strong>\u53c2\u8003\u30fb\u51fa\u5178\uff082026\u5e7410\u670823\u65e5\u78ba\u8a8d\uff09\uff1a<\/strong><a href=\"https:\/\/www.php.net\/archive\/2026.php#2026-10-21-5\" target=\"_blank\" rel=\"noopener noreferrer\">PHP\u516c\u5f0f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30ea\u30fc\u30b9<\/a>\u3001<a href=\"https:\/\/ja.wordpress.org\/2026\/10\/21\/critical-php-security-release\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u65e5\u672c\u8a9e\u516c\u5f0f\u306e\u544a\u77e5<\/a>\u3001<a href=\"https:\/\/wordpress.org\/documentation\/site-health\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u516c\u5f0f\u30b5\u30a4\u30c8\u30d8\u30eb\u30b9<\/a>\u3001<a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/debug\/debug-wordpress\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress\u516c\u5f0f\u30c7\u30d0\u30c3\u30b0\u624b\u9806<\/a>\u3001<a href=\"https:\/\/contactform7.com\/ja\/faq\/\" target=\"_blank\" rel=\"noopener noreferrer\">Contact Form 7\u516c\u5f0fFAQ<\/a>\u3001<a href=\"https:\/\/contactform7.com\/setting-up-mail\/\" target=\"_blank\" rel=\"noopener noreferrer\">Contact Form 7\u516c\u5f0f\u30e1\u30fc\u30eb\u8a2d\u5b9a<\/a>\u3001<a href=\"https:\/\/wpmailsmtp.com\/docs\/how-to-troubleshoot-wp-mail-smtp\/\" target=\"_blank\" rel=\"noopener noreferrer\">WP Mail SMTP\u516c\u5f0f\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u66f4\u65b0\u5f8c\u306bWordPress\u306e\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u304c\u9001\u308c\u306a\u3044\u3001\u5b8c\u4e86\u8868\u793a\u306a\u306e\u306b\u5c4a\u304b\u306a\u3044\u3068\u304d\u306e\u5207\u308a\u5206\u3051\u65b9\u3092\u89e3\u8aac\u3002Contact Form 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