{"id":38891,"date":"2022-11-10T01:48:16","date_gmt":"2022-11-09T16:48:16","guid":{"rendered":"https:\/\/kinsta.com\/jp\/?p=38891&#038;preview=true&#038;preview_id=38891"},"modified":"2023-08-25T06:59:38","modified_gmt":"2023-08-24T21:59:38","slug":"email-header","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/email-header\/","title":{"rendered":"\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u91cd\u8981\u6027\u3068\u78ba\u8a8d\u65b9\u6cd5"},"content":{"rendered":"<p>\u30e1\u30fc\u30eb\u306f\u3001\u500b\u4eba\u30fb\u4f01\u696d\u3092\u554f\u308f\u305a\u3001\u306a\u304f\u3066\u306f\u306a\u3089\u306a\u3044\u91cd\u8981\u306a\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\/\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30c4\u30fc\u30eb\u3067\u3059\u3002\u306a\u3093\u3068\u3001\u30d3\u30b8\u30cd\u30b9\u95a2\u9023\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5ba3\u4f1d\u306b\u30e1\u30fc\u30eb\u304c\u5229\u7528\u3055\u308c\u308b\u5272\u5408\u306f<a href=\"https:\/\/kinsta.com\/jp\/blog\/email-marketing-statistics\/\">70\uff05<\/a>\u306b\u4e0a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u30e1\u30fc\u30eb\u306e\u6a5f\u80fd\u306f\u3001\u305f\u3060\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u53d7\u4fe1\u306b\u7559\u307e\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>Kaspersky Lab\u306b\u3088\u308b\u3068\u30012021\u5e74\u306b\u9001\u53d7\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb\u306e46%\u4ee5\u4e0a\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u3067\u3057\u305f\u3002\u3053\u306e\u4e8b\u5b9f\u306f\u3001<a href=\"https:\/\/kinsta.com\/blog\/email-marketing-best-practices\/\">\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u6226\u7565<\/a>\u306b\u304a\u3044\u3066\u3001\u5927\u304d\u306a\u554f\u984c\u3067\u3042\u308a\u3001\u901a\u4fe1\u5185\u5bb9\u306b\u6ce8\u610f\u3092\u6255\u308f\u306a\u3051\u308c\u3070\u3001\u81ea\u793e\u306e\u30d6\u30e9\u30f3\u30c9\u306b\u50b7\u3092\u3064\u3051\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u6027\u306e\u78ba\u4fdd\u3082\u30e1\u30fc\u30eb\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3067\u7279\u306b\u96e3\u3057\u3044\u8ab2\u984c\u3067\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u5f79\u7acb\u3064\u306e\u304c\u3001\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u3067\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306b\u3064\u3044\u3066<a href=\"https:\/\/www.youtube.com\/watch?v=LPL_XQtRkK4\" target=\"_blank\" rel=\"noopener noreferrer\">\u52d5\u753b\u3067\u306e\u89e3\u8aac<\/a>\u3082\u3054\u7528\u610f\u3057\u3066\u3044\u307e\u3059<\/h3>\n<p class=\"p1\"><kinsta-video src=\"https:\/\/www.youtube.com\/watch?v=LPL_XQtRkK4\"><\/kinsta-video><\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u3068\u306f\u4f55\u304b\u3001\u305d\u3057\u3066\u305d\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u6700\u5f8c\u306b\u3001Gmail\u3001Microsoft Outlook\u3001Yahoo!\u30e1\u30fc\u30eb\u3001Apple\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u3001\u5404\u4e3b\u8981\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u3067\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3082\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u65e9\u901f\u3001\u672c\u984c\u306b\u5165\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<h2>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u3068\u306f<\/h2>\n<p>\u30e1\u30fc\u30eb\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e3\u3064\u306e\u8981\u7d20\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>\u30d8\u30c3\u30c0\u30fc\uff1a<\/strong>\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u95a2\u3059\u308b\u91cd\u8981\u306a\u60c5\u5831\u3092\u542b\u3080\u7279\u5b9a\u306e\u30c7\u30fc\u30bf<\/li>\n<li><strong>\u672c\u6587\uff1a<\/strong>\u5b9b\u540d\u304b\u3089\u7de0\u3081\u306e\u8a00\u8449\u307e\u3067\uff08\u3064\u307e\u308a\u3001\u300c\u301c\u69d8\u300d\u304b\u3089\u300c\u4f55\u5352\u3088\u308d\u3057\u304f\u304a\u9858\u3044\u81f4\u3057\u307e\u3059\u300d\u307e\u3067\uff09\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5185\u5bb9\u3068\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb<\/li>\n<li><strong>\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7\uff1a<\/strong>\u30e1\u30fc\u30eb\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3068\u9001\u4fe1\u30b5\u30fc\u30d0\u30fc\u304c\u3001\u5bfe\u8c61\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u30e1\u30fc\u30eb\u3092\u4f1d\u9054\u30fb\u914d\u4fe1\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u60c5\u5831\uff08\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306b\u306f\u975e\u8868\u793a\uff09<\/li>\n<\/ol>\n<p>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u4e00\u90e8\uff08\u30e1\u30bf\u30c7\u30fc\u30bf\uff09\u306f\u3001\u901a\u5e38\u30e1\u30fc\u30eb\u306e\u4e0a\u90e8\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u304c\u3001\u6a19\u6e96\u7684\u3067\u306f\u306a\u3044\u30d8\u30c3\u30c0\u30fc\u306b\u3064\u3044\u3066\u306f\u3001\u7279\u5225\u306a\u64cd\u4f5c\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308c\u3070\u3001\u305d\u306e\u30e1\u30fc\u30eb\u304c\u7d4c\u7531\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u3001ISP\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u9001\u4fe1\u304c\u4fdd\u8b77\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3001\u30a8\u30e9\u30fc\u3084\u6539\u3056\u3093\u304c\u306a\u304f\u610f\u56f3\u3057\u305f\u76f8\u624b\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u5230\u9054\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3082\u3001\u77ac\u6642\u306b\u5206\u6790\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n<h2>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u69cb\u6210<\/h2>\n<p>\u30e1\u30bf\u30c7\u30fc\u30bf\u306f\u3001\u30c7\u30fc\u30bf\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5206\u985e\u30fb\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u69cb\u9020\u5316\u3055\u308c\u305f\u53c2\u7167\u60c5\u5831\u306e\u4e00\u7a2e\u3067\u3059\u3002\u30e1\u30fc\u30eb\u306b\u304a\u3044\u3066\u30e1\u30bf\u30c7\u30fc\u30bf\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u3001&lt;body&gt;\u30bf\u30b0\u307e\u3067\u306e\u3059\u3079\u3066\u306e\u30b3\u30fc\u30c9\u304c\u8a18\u8ff0\u3055\u308c\u3066\u304a\u308a\u3001\u5177\u4f53\u7684\u306b\u306f\u4ee5\u4e0b\u306e\u60c5\u5831\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>From<\/strong>\uff08\u5dee\u51fa\u4eba\uff09\uff1a\u9001\u4fe1\u8005\u306e\u60c5\u5831\u3002\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u3067\u306f\u3001\u3053\u306e\u6b04\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304c\u6539\u3056\u3093\u3055\u308c\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3042\u308a\u3001\u8981\u6ce8\u610f\u3002<\/li>\n<li><strong>To<\/strong>\uff08\u5b9b\u5148\uff09\uff1a\u53d7\u4fe1\u8005\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3068\u540d\u524d\u3001\u30ab\u30fc\u30dc\u30f3\u30b3\u30d4\u30fc\uff08<strong>CC<\/strong>\uff09\u304a\u3088\u3073\u30d6\u30e9\u30a4\u30f3\u30c9\u30ab\u30fc\u30dc\u30f3\u30b3\u30d4\u30fc\uff08<strong>BCC<\/strong>\uff09\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<li><strong>Date<\/strong>\uff08\u65e5\u6642\uff09\uff1a\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u65e5\u6642\u304c\u6b63\u78ba\u306b\u8868\u793a\u3055\u308c\u308b\u3002\u901a\u5e38\u300c\u5e74\u3001\u6708\u3001\u65e5\uff08\u66dc\u65e5\uff09\u3001\u6642\u9593\uff08\u6642\uff1a\u5206\uff1a\u79d2\uff09\u300d\u306e\u9806\u5e8f\u3067\u8868\u8a18\u3055\u308c\u308b\uff08\u4f8b\uff1a2022\u5e7412\u670825\u65e5\uff08\u91d1\uff098:05:27\uff09\u3002<\/li>\n<li><strong>Return-Path<\/strong>\uff1a\u30b7\u30b9\u30c6\u30e0\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u4fe1\u5143\u3068\u306a\u308b\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u3002Reply-To\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u53d7\u4fe1\u8005\u304c\u8fd4\u4fe1\u3059\u308b\u969b\u306e\u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u308b\u3002<\/li>\n<li><strong>Envelope-To<\/strong>\uff1a\u3053\u306e\u884c\u3067\u6307\u5b9a\u3055\u308c\u305f\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u305f\u3053\u3068\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<li><strong>Subject<\/strong>\uff08\u4ef6\u540d\uff09\uff1a\u9001\u4fe1\u8005\u304c\u4ef6\u540d\u306b\u8a18\u5165\u3057\u305f\u4ef6\u540d\u3084\u5185\u5bb9\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<li><strong>Message-ID<\/strong>\uff1a\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4f5c\u6210\u6642\u306b\u751f\u6210\u3055\u308c\u308b\u6587\u5b57\u3068\u6570\u5b57\u304b\u3089\u306a\u308b\u7279\u5b9a\u306e\u8b58\u5225\u756a\u53f7\u3002\u5404\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u56fa\u6709\u306eID\u304c\u3042\u3063\u3066\u3082\u3001\u30cf\u30c3\u30ad\u30f3\u30b0\u306b\u3088\u308a\u5909\u66f4\u3092\u52a0\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u3066\u3057\u307e\u3046\u3002<\/li>\n<li><strong>MIME-Version<\/strong>\uff1aMulti-Purpose Internet Mail Extensions\uff08\u591a\u76ee\u7684\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30e1\u30fc\u30eb\u62e1\u5f35\uff09\u306e\u7565\u3002\u305d\u306e\u540d\u306e\u901a\u308a\u3001\u5199\u771f\u3001\u97f3\u58f0\u3001\u52d5\u753b\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u30c7\u30fc\u30bf\u30d5\u30a1\u30a4\u30eb\u3092\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u9001\u53d7\u4fe1\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u96fb\u5b50\u30e1\u30fc\u30eb\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u62e1\u5f35\u6a5f\u80fd\u3002<\/li>\n<li><strong>Content-Type<\/strong>\uff1a\u30e1\u30fc\u30eb\u304c\u30c6\u30ad\u30b9\u30c8\u5f62\u5f0f\u307e\u305f\u306f<a href=\"https:\/\/kinsta.com\/blog\/html-email\/\">HTML<\/a>\u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u304b\u3092\u6307\u5b9a\u3002\u753b\u50cf\u3084\u52d5\u753b\u306e\u6dfb\u4ed8\u304c\u3042\u308b\u5834\u5408\u306b\u3082\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<li><strong> DomainKeys\u3001<\/strong><strong>DKIM-Signatures<\/strong>\uff1aDomainKeys\u304a\u3088\u3073DKIM\uff08DomainKeys Identified Mail\uff09\u7f72\u540d\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u540d\u3068\u30e1\u30fc\u30eb\u3092\u95a2\u9023\u3065\u3051\u308b\u3053\u3068\u3067\u3001\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u304c<a href=\"https:\/\/kinsta.com\/jp\/blog\/email-authentication\/\">\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8b58\u5225\u3057\u3066\u8a8d\u8a3c<\/a>\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002<\/li>\n<li><strong>X-Spam-Status<\/strong>\uff1a\u30e1\u30fc\u30eb\u306e\u30b9\u30d1\u30e0\u5224\u5b9a\u3068\u6570\u5024\u30b9\u30b3\u30a2\u304c\u8868\u793a\u3055\u308c\u308b\uff08\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u3067\u306a\u3044\u5834\u5408\u306f\u3001\u300cNo\u300d\u3068\u8868\u793a\uff09\u3002<\/li>\n<li><strong>X-Spam-Level<\/strong>\uff1a\u30a2\u30b9\u30bf\u30ea\u30b9\u30af\uff08*\uff09\u3067\u793a\u3055\u308c\u308b\u9001\u4fe1\u30e1\u30fc\u30eb\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305fSpamAssassin\u306e\u7dcf\u5408\u30b9\u30b3\u30a2\u3092\u8868\u793a\u3002\u30a2\u30b9\u30bf\u30ea\u30b9\u30af\u306e\u6570\u304c\u5c11\u306a\u3044\u307b\u3069\u826f\u304f\u3001\u30a2\u30b9\u30bf\u30ea\u30b9\u30af1\u3064\u306b\u3064\u304d1\u30b9\u30b3\u30a2\u306e\u63db\u7b97\u3002<\/li>\n<li><strong>Message Body<\/strong>\uff08\u30e1\u30c3\u30bb\u30fc\u30b8\u672c\u6587\uff09\uff1a\u30e1\u30fc\u30eb\u306e\u5185\u5bb9\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/li>\n<\/ul>\n<h2>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u91cd\u8981\u6027<\/h2>\n<p>\u306a\u305c\u53d7\u4fe1\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u306a\u306e\u304b\u3001\u7591\u554f\u306b\u601d\u3046\u65b9\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3092\u5c55\u958b\u3057\u305f\u308a\u3001\u9867\u5ba2\u306b\u30cb\u30e5\u30fc\u30b9\u30ec\u30bf\u30fc\u3092\u914d\u4fe1\u3057\u305f\u308a\u306a\u3069\u3001\u7279\u306b\u4ed5\u4e8b\u3067\u30e1\u30fc\u30eb\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u7406\u7531\u3067\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u304c\u6709\u7528\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30b9\u30d1\u30e0\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u304b\u3089\u306e\u4fdd\u8b77<\/h3>\n<p><a href=\"https:\/\/kinsta.com\/jp\/blog\/types-of-malware\/\">\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3068\u30b9\u30d1\u30e0<\/a>\u306f\u3001\u30e1\u30fc\u30eb\u3092\u5229\u7528\u3059\u308b\u306b\u3042\u305f\u3063\u3066\u7169\u308f\u3057\u3044\u5b58\u5728\u3002\u30b5\u30a4\u30d0\u30fc\u72af\u7f6a\u8005\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u7b56\u3092\u5de7\u307f\u306b\u3059\u308a\u629c\u3051\u3001\u4e00\u822c\u306e\u5229\u7528\u8005\u3084\u4f01\u696d\u306b\u88ab\u5bb3\u3092\u4e0e\u3048\u308b\u305f\u3081\u3001\u7d76\u3048\u9593\u306a\u304f\u300c\u306a\u308a\u3059\u307e\u3057\u8853\u300d\u3092\u8003\u6848\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306f\u3001<a href=\"https:\/\/kinsta.com\/blog\/website-security-check\/\">\u30b9\u30d1\u30e0\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306e\u653b\u6483\u3092\u56de\u907f<\/a>\u3059\u308b\u306e\u306b\u4f7f\u3048\u307e\u3059\u3002\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\uff08ESP\uff09\u304c\u30b9\u30d1\u30e0\u5224\u5b9a\u3092\u884c\u3046\u306e\u306b\u4e00\u5f79\u8cb7\u3063\u3066\u304f\u308c\u308b\u5b58\u5728\u3067\u3059\u3002ESP\u306f\u3001\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u5185\u306e\u60c5\u5831\u3092\u5206\u6790\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u6b63\u5f53\u306a\u3082\u306e\u304b\u3069\u3046\u304b\u3001\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u53d7\u4fe1\u8005\u306b\u9001\u4fe1\u3055\u308c\u308b\u3079\u304d\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n<h3>\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306e\u60c5\u5831\u7279\u5b9a<\/h3>\n<p>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u3001\u524d\u8ff0\u306e\u901a\u308a\u3001\u5dee\u51fa\u4eba\u3001\u5b9b\u540d\u3001\u4ef6\u540d\u3001\u65e5\u4ed8\u306a\u3069\u306e\u91cd\u8981\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u8b58\u5225\u5b50\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30d8\u30c3\u30c0\u30fc\u306e\u60c5\u5831\u306a\u3057\u306b\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u3001\u914d\u4fe1\u5148\u3001\u9001\u53d7\u4fe1\u65e5\u6642\u3001\u5b89\u5168\u6027\u3001\u771f\u6b63\u6027\u3092\u5224\u65ad\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306b\u306f\u3001\u9001\u4fe1\u8005\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u8a73\u7d30\u306b\u8a18\u8f09\u3055\u308c\u3066\u304a\u308a\u3001\u30e1\u30fc\u30eb\u9001\u4fe1\u5143\u306e\u8ffd\u8de1\u3082\u53ef\u80fd\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/dark-patterns\/\">\u8a50\u6b3a\u5e2b<\/a>\u3084<a href=\"https:\/\/kinsta.com\/blog\/ip-spoofing\/\">\u60aa\u610f\u306e\u3042\u308b\u653b\u6483<\/a>\u3092\u7c21\u5358\u306b\u898b\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u306e\u5411\u4e0a<\/h3>\n<p>\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306b1\u30c9\u30eb\u6295\u8cc7\u3059\u308b\u3068\u3001<a href=\"https:\/\/kinsta.com\/blog\/email-marketing-tips\/\">44\u30c9\u30eb\u306eROI\uff08\u6295\u8cc7\u5229\u76ca\u7387\uff09\u3092\u5f97\u308b<\/a>\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3078\u306e\u6295\u8cc7\u5bfe\u52b9\u679c\u306f4,400%\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u6570\u5b57\u3092\u8e0f\u307e\u3048\u308b\u3068\u3001\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u4e0a\u3067\u4f55\u3088\u308a\u3082\u907f\u3051\u305f\u3044\u306e\u306f\u3001\u9867\u5ba2\u306b\u9001\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u304c<a href=\"https:\/\/kinsta.com\/jp\/blog\/why-are-my-emails-going-to-spam\/\">\u8ff7\u60d1\u30d5\u30a9\u30eb\u30c0\uff08\u30b9\u30d1\u30e0\uff09\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u3066\u3057\u307e\u3046<\/a>\u3053\u3068\u3002\u30b9\u30d1\u30e0\u30d5\u30a3\u30eb\u30bf\u30fc\u3068\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306b\u3088\u3063\u3066\u3001\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u304c\u30b9\u30ad\u30e3\u30f3\u3055\u308c\u3001SPF\u3001DKIM\u3001X-Spam-Status\u3001X-Spam-Level\u304c\u5206\u6790\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u9001\u4fe1\u8005\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u3078\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u3092\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3001\u305d\u3057\u3066\u4f55\u8005\u304b\u306b\u3088\u3063\u3066\u6539\u3056\u3093\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/kinsta.com\/jp\/blog\/email-tracking-software\/\">\u30e1\u30fc\u30eb\u8ffd\u8de1\u30c4\u30fc\u30eb<\/a>\u306b\u6295\u8cc7\u3057\u3066\u3001\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u72b6\u6cc1\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3059\u308b\u306e\u306f\u8ce2\u660e\u306a\u5224\u65ad\u3067\u3059\u3002<a href=\"https:\/\/kinsta.com\/jp\/blog\/mailchimp-alternatives\/\">Mailchimp\u306b\u3042\u308b\u3088\u3046\u306a\u8ffd\u8de1\u30b7\u30b9\u30c6\u30e0<\/a>\u3092\u4f7f\u3048\u3070\u3001\u554f\u984c\u3092\u77ac\u6642\u306b\u691c\u51fa\u3059\u308b\uff08\u3042\u308b\u3044\u306f\u672a\u7136\u306b\u9632\u3050\uff09\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/kinsta.com\/blog\/mailhog\/\">Mailhog\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb<\/a>\u3067\u30e1\u30fc\u30eb\u3092\u30c6\u30b9\u30c8\u3059\u308b\u306e\u3082\u624b\u3067\u3059\u304c\u3001\u81ea\u5206\u81ea\u8eab\u306b<a href=\"https:\/\/kinsta.com\/jp\/blog\/send-test-email\/\">\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb<\/a>\u3092\u9001\u4fe1\u3059\u308b\u65b9\u304c\u65e9\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u5f8c\u8005\u306e\u65b9\u6cd5\u3067\u306f\u3001\u81ea\u5206\u306e<a href=\"https:\/\/kinsta.com\/jp\/blog\/cannot-modify-header-information-headers-already-sent-by\/\">\u30d8\u30c3\u30c0\u30fc\u60c5\u5831<\/a>\u304c\u6b63\u3057\u3044\u304b\u3069\u3046\u304b\u3001\u30b9\u30d1\u30e0\u30d5\u30a3\u30eb\u30bf\u30fc\u306b\u5f15\u3063\u304b\u304b\u3089\u306a\u3044\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3001<a href=\"https:\/\/kinsta.com\/blog\/email-deliverability-manager\/\">\u30e1\u30fc\u30eb\u306e\u5230\u9054\u7387\u3092\u6700\u5927\u5316<\/a>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/website-downtime\/\">\u30b5\u30a4\u30c8\u304c\u30c0\u30a6\u30f3<\/a>\u3057\u3066\u3057\u307e\u3063\u305f\u6642\u3001\u30e1\u30fc\u30eb\u306e\u9001\u53d7\u4fe1\u306f\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u30b5\u30a4\u30c8\u3068\u540c\u3058\u30b5\u30fc\u30d0\u30fc\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u30b5\u30a4\u30c8\u306e\u30c0\u30a6\u30f3\u306b\u4f34\u3044\u30e1\u30fc\u30eb\u9001\u4fe1\u6a5f\u80fd\u3082\u307b\u307c\u9593\u9055\u3044\u306a\u304f\u505c\u6b62\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30a4\u30c8\u3068\u4e00\u7dd2\u306b\u30e1\u30fc\u30eb\u3067\u307e\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/keep-email-and-hosting-separate\/\">\u30e1\u30fc\u30eb\u3068\u30b5\u30a4\u30c8\u3092\u904b\u7528\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u3092\u5206\u3051\u308b<\/a>\u3053\u3068\u3092\u5f37\u304f\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u3053\u306e\u7406\u7531\u304b\u3089\u3001Kinsta\u3067\u306f<a href=\"https:\/\/kinsta.com\/jp\/docs\/wordpress-hosting\/mykinsta-tools\/email\/\">\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093<\/a>\u3002\u30b5\u30a4\u30c8\u5168\u4f53\u306e\u30b9\u30e0\u30fc\u30ba\u306a\u904b\u55b6\u3092\u91cd\u8981\u8996\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5206\u96e2\u3068\u5197\u9577\u6027\u3092\u8003\u616e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n<p>\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u78ba\u8a8d\u65b9\u6cd5\u3084\u30ec\u30a4\u30a2\u30a6\u30c8\u306f\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/secure-email-providers\/\">ESP\uff08\u96fb\u5b50\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\uff09<\/a>\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u8a72\u5f53\u306e\u884c\u3092\u691c\u7d22\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u3001\u4eba\u6c17\u306eESP\u3092\u3044\u304f\u3064\u304b\u53d6\u308a\u4e0a\u3052\u3001\u7c21\u5358\u306a\u78ba\u8a8d\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>Gmail\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc<\/h3>\n<p>\u5168\u4e16\u754c\u306715\u5104\u4eba\u4ee5\u4e0a\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u30e6\u30fc\u30b6\u30fc\u3092\u8a87\u308bGmail\u306f\u3001\u4e16\u754c\u7684\u306b\u6709\u540d\u306a\u30aa\u30f3\u30e9\u30a4\u30f3\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306e1\u3064\u3002Google\u304c\u5b9a\u671f\u7684\u306b\u6570\u3005\u306e<a href=\"https:\/\/kinsta.com\/blog\/gmail-keyboard-shortcuts\/\">\u4fbf\u5229\u306a\u6a5f\u80fd<\/a>\u3092\u8ffd\u52a0\u3057\u3066\u3044\u308b\u306e\u3082\u7d0d\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Gmail\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u3001\u30d1\u30bd\u30b3\u30f3\u304b\u3089\u7c21\u5358\u306b\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff08\u30e2\u30d0\u30a4\u30eb\u7aef\u672b\u3067\u306f\u8868\u793a\u4e0d\u53ef\uff09\u3002<\/p>\n<ol>\n<li>Gmail\u3092\u958b\u304d\u3001\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3057\u305f\u3044\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u307e\u3059\u3002\n<p><figure style=\"width: 1054px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Gmail-1.png\" alt=\"Gmail\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\" width=\"1054\" height=\"513\"><figcaption class=\"wp-caption-text\">Gmail\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4<\/figcaption><\/figure><\/li>\n<li>\u30e1\u30fc\u30eb\u672c\u6587\u304c\u8868\u793a\u3055\u308c\u305f\u3089\u3001\u300c<strong>\u8fd4\u4fe1<\/strong>\u300d\u30a2\u30a4\u30b3\u30f3\u306e\u6a2a\u306b\u3042\u308b\u7e26\u4e09\u70b9\u30ea\u30fc\u30c0\u30fc\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30e1\u30cb\u30e5\u30fc\u3092\u958b\u304d\u307e\u3059\u3002\n<figure style=\"width: 1027px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Gmail-2.png\" alt=\"\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30e1\u30cb\u30e5\u30fc\u3092\u958b\u304f\" width=\"1027\" height=\"350\"><figcaption class=\"wp-caption-text\">\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30e1\u30cb\u30e5\u30fc\u3092\u958b\u304f<\/figcaption><\/figure>\n<p>\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<strong>\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a<\/strong>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<p><figure style=\"width: 1042px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Gmail-4.png\" alt=\"\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d\u3092\u30af\u30ea\u30c3\u30af\" width=\"1042\" height=\"505\"><figcaption class=\"wp-caption-text\">\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d\u3092\u30af\u30ea\u30c3\u30af<\/figcaption><\/figure><\/li>\n<li>\u6b21\u306e\u753b\u9762\u3067\u3001\u9577\u3044\u30d8\u30c3\u30c0\u30fc\u304cHTML\u5f62\u5f0f\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u8a8d\u8a3c\u72b6\u6cc1\u3001IP\u30a2\u30c9\u30ec\u30b9\u3001MIME\u30d0\u30fc\u30b8\u30e7\u30f3\u3001DKIM\u306a\u3069\u306e\u30d8\u30c3\u30c0\u30fc\u306e\u8a73\u7d30\u60c5\u5831\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\n<p><figure style=\"width: 1133px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Gmail-5.png\" alt=\"Gmail\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\" width=\"1133\" height=\"618\"><figcaption class=\"wp-caption-text\">Gmail\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc<\/figcaption><\/figure><\/li>\n<li>\u30d8\u30c3\u30c0\u30fc\u30c7\u30fc\u30bf\u3092\u5225\u9014\u5206\u6790\u3001\u307e\u305f\u306f\u3001IT\u62c5\u5f53\u8005\u306b\u30e1\u30fc\u30eb\u3067\u5171\u6709\u3059\u308b\u306b\u306f\u3001\u300c<strong>\u5143\u306e\u30e1\u30fc\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n<p><figure style=\"width: 1133px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Gmail-6.png\" alt=\"\u300c\u5143\u306e\u30e1\u30fc\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u300d\u3092\u30af\u30ea\u30c3\u30af\" width=\"1133\" height=\"618\"><figcaption class=\"wp-caption-text\">\u300c\u5143\u306e\u30e1\u30fc\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u300d\u3092\u30af\u30ea\u30c3\u30af<\/figcaption><\/figure><\/li>\n<\/ol>\n<h3>Yahoo!\u30e1\u30fc\u30eb\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc<\/h3>\n<p>Yahoo!\u30e1\u30fc\u30eb\u306b\u3082\u3055\u307e\u3056\u307e\u306a\u6a5f\u80fd\u304c\u63c3\u3063\u3066\u3044\u307e\u3059\u304c\u3001Gmail\u306e\u305d\u308c\u306b\u306f\u6575\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>Yahoo!\u30e1\u30fc\u30eb\u306e\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>Yahoo!\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\u3092\u958b\u304d\u3001\u30d8\u30c3\u30c0\u30fc\u3092\u8868\u793a\u3057\u305f\u3044\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n<li>\u300c<strong>\u305d\u306e\u4ed6<\/strong>\u300d\u306e\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<strong>\u8a73\u7d30\u30d8\u30c3\u30c0\u30fc\u3092\u8868\u793a<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/li>\n<li>\u3059\u308b\u3068\u3001\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u8a73\u7d30\u30c7\u30fc\u30bf\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n<h3>Outlook\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc<\/h3>\n<p>\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u6226\u7565\u306e\u5f37\u5316\u306b\u3001\u591a\u304f\u306e\u4f01\u696d\u304cMicrosoft Outlook\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002Outlook\u306e\u512a\u308c\u305f\u30d5\u30a9\u30eb\u30c0\u30b7\u30b9\u30c6\u30e0\u3067\u30bf\u30b9\u30af\u3084\u30e1\u30fc\u30eb\u3092\u591a\u69d8\u306b\u5206\u985e\u3059\u308b\u3053\u3068\u3067\u3001<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-spam-comments\/\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u3092\u6e1b\u3089\u3059<\/a>\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3001Microsoft Outlook\u306e\u30d0\u30fc\u30b8\u30e7\u30f3 2202\uff0864\u30d3\u30c3\u30c8\uff09\u3092\u4f8b\u306b\u6319\u3052\u3066\u3001\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u8a73\u7d30\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30d5\u30a9\u30eb\u30c0\u304b\u3089\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3057\u305f\u3044\u30e1\u30fc\u30eb\u3092\u958b\u304d\u307e\u3059\u3002\u5fc5\u305a\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af\u3057\u3001\u5225\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u8868\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n<p><figure style=\"width: 1028px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Email-1.png\" alt=\"\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3057\u305f\u3044\u30e1\u30fc\u30eb\u3092\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af\u3067\u9078\u629e\" width=\"1028\" height=\"529\"><figcaption class=\"wp-caption-text\">\u30d8\u30c3\u30c0\u30fc\u3092\u78ba\u8a8d\u3057\u305f\u3044\u30e1\u30fc\u30eb\u3092\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af\u3067\u9078\u629e<\/figcaption><\/figure><\/li>\n<li>\u30a6\u30a3\u30f3\u30c9\u30a6\u4e0a\u90e8\u306e\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<strong>\u30a2\u30af\u30b7\u30e7\u30f3<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u30e1\u30cb\u30e5\u30fc\u304b\u3089\u300c<strong>\u305d\u306e\u4ed6\u306e\u30a2\u30af\u30b7\u30e7\u30f3<\/strong>\u300d\u3092\u9078\u3073\u307e\u3059\u3002\u300c<strong>HTML\u30bd\u30fc\u30b9\u306e\u8868\u793a<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n<p><figure style=\"width: 1076px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Email-2.png\" alt=\"\u300cHTML\u30bd\u30fc\u30b9\u306e\u8868\u793a\u300d\u3092\u9078\u629e\" width=\"1076\" height=\"395\"><figcaption class=\"wp-caption-text\">\u300cHTML\u30bd\u30fc\u30b9\u306e\u8868\u793a\u300d\u3092\u9078\u629e<\/figcaption><\/figure><\/li>\n<li>\u30d8\u30c3\u30c0\u30fc\u306e\u8a73\u7d30\u304c\u81ea\u52d5\u7684\u306b\u30e1\u30e2\u5e33\u30d5\u30a1\u30a4\u30eb\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\n<p><figure style=\"width: 934px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2022\/04\/Header.png\" alt=\"\u30e1\u30e2\u5e33\u3067\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u8a73\u7d30\u3092\u8868\u793a\" width=\"934\" height=\"524\"><figcaption class=\"wp-caption-text\">\u30e1\u30e2\u5e33\u3067\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc\u306e\u8a73\u7d30\u3092\u8868\u793a<\/figcaption><\/figure><\/li>\n<\/ol>\n<h3>Apple Mail\u306e\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u30fc<\/h3>\n<p>Mac\u3067\u4f7f\u7528\u3067\u304d\u308bApple\u306e\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9\u306f\u3001\u305d\u306e\u767b\u5834\u4ee5\u6765\u3001\u4fbf\u5229\u306a\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u304a\u308a\u3001\u8a2d\u5b9a\u3082\u4f7f\u3044\u65b9\u3082\u7c21\u5358\u3067\u3059\u3002\u6700\u8fd1\u306eOS\u3067\u306f\u3001\u66f8\u5f0f\u8a2d\u5b9a\u306e\u5909\u66f4\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u306e\u8ffd\u52a0\u3001\u300c\u8fd4\u4fe1\u300d\u30e1\u30cb\u30e5\u30fc\u306e\u6539\u826f\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Apple 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