{"id":14639,"date":"2026-02-12T11:30:21","date_gmt":"2026-02-12T02:30:21","guid":{"rendered":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14639"},"modified":"2026-02-12T11:44:35","modified_gmt":"2026-02-12T02:44:35","slug":"%e3%83%a1%e3%83%bc%e3%83%ab%e3%82%af%e3%83%a9%e3%82%a4%e3%82%a2%e3%83%b3%e3%83%88%e3%81%a7%e3%83%98%e3%83%83%e3%83%80%e6%83%85%e5%a0%b1%e3%82%92%e7%a2%ba%e8%aa%8d%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14639","title":{"rendered":"\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30d8\u30c3\u30c0\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/20260212_blog.png\" alt=\"\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30d8\u30c3\u30c0\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\" width=\"100%\" class=\"aligncenter size-full wp-image-19977\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/20260212_blog.png 650w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/20260212_blog-300x185.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/20260212_blog-225x139.png 225w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<h3>\u306f\u3058\u3081\u306b<\/h3>\n<p>\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001Gmail\u30fbYahoo!\u30e1\u30fc\u30eb\u30fbiCloud\u30e1\u30fc\u30eb\u30fbOutlook\uff08\u203b\uff09\u306e4\u3064\u306e\u4e3b\u8981\u306a\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u30d8\u30c3\u30c0\u60c5\u5831\u306b\u306f\u3001\u4e3b\u306b\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u7d4c\u8def\u3084\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u95a2\u9023\u306e\u60c5\u5831\u3001\u4ef6\u540d\u30fbFrom\u30a2\u30c9\u30ec\u30b9\u30fbTo\u30a2\u30c9\u30ec\u30b9\u306e\u3088\u3046\u306a\u30e1\u30bf\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u60c5\u5831\u306f\u3001\u4ef6\u540d\u3084\u672c\u6587\u304c\u6587\u5b57\u5316\u3051\u3057\u305f\u308a\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u305f\u308a\u3057\u305f\u5834\u5408\u306e\u539f\u56e0\u8abf\u67fb\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<br \/>\n\uff08\u203b\uff09\u672c\u8a18\u4e8b\u306fWeb\u30d6\u30e9\u30a6\u30b6\u3067\u306e\u64cd\u4f5c\u3092\u524d\u63d0\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30d8\u30c3\u30c0\u60c5\u5831\u306e\u78ba\u8a8d\u65b9\u6cd5<\/h3>\n<p>\u305d\u308c\u3067\u306f\u65e9\u901f\u3001\u64cd\u4f5c\u624b\u9806\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>Gmail<\/h4>\n<ol>\n<li>\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u7e26\u4e09\u70b9\u30ea\u30fc\u30c0\uff08\ufe19\uff09\u304b\u3089\u300c\u539f\u6587\u3092\u8868\u793a\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/gmail01.png\" alt=\"\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u7e26\u4e09\u70b9\u30ea\u30fc\u30c0\u304b\u3089\u300c\u539f\u6587\u3092\u8868\u793a\u300d\u3092\u9078\u629e\" width=\"100%\" class=\"aligncenter size-full wp-image-19978\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/gmail01.png 593w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/gmail01-300x259.png 300w\" sizes=\"(max-width: 593px) 100vw, 593px\" \/><\/li>\n<li>\u30d8\u30c3\u30c0\u60c5\u5831\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u300c\u5143\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u300d\u753b\u9762\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u306f\u3001Gmail\u304c\u81ea\u52d5\u7684\u306b\u30c7\u30b3\u30fc\u30c9\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u306b\u9001\u4fe1\u3055\u308c\u305f\u30d8\u30c3\u30c0\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u300c\u5143\u306e\u30e1\u30fc\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u300d\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/gmail02.png\" alt=\"\u30d8\u30c3\u30c0\u60c5\u5831\u306e\u8868\u793a\" width=\"100%\" class=\"aligncenter size-full wp-image-19979\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/gmail02.png 644w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/gmail02-300x268.png 300w\" sizes=\"(max-width: 644px) 100vw, 644px\" \/><\/li>\n<\/ol>\n<h4>Yahoo!\u30e1\u30fc\u30eb<\/h4>\n<ol>\n<li>\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u53f3\u4e0a\u306e\u300c\u8a73\u7d30\u30d8\u30c3\u30c0\u30fc\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/yahoo01.png\" alt=\"\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u53f3\u4e0a\u306e\u300c\u8a73\u7d30\u30d8\u30c3\u30c0\u30fc\u300d\u3092\u9078\u629e\" width=\"100%\" class=\"aligncenter size-full wp-image-19983\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/yahoo01.png 725w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/yahoo01-300x134.png 300w\" sizes=\"(max-width: 725px) 100vw, 725px\" \/><\/li>\n<li>\u30d8\u30c3\u30c0\u60c5\u5831\u304c\u5225\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u300c\u8a73\u7d30\u30d8\u30c3\u30c0\u30fc\u3092\u30b3\u30d4\u30fc\u300d\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3053\u3068\u3067\u8868\u793a\u5185\u5bb9\u3092\u7c21\u5358\u306b\u30b3\u30d4\u30fc\u3067\u304d\u307e\u3059\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/yahoo02.png\" alt=\"\u30d8\u30c3\u30c0\u60c5\u5831\" width=\"100%\" class=\"aligncenter size-full wp-image-19984\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/yahoo02.png 591w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/yahoo02-300x268.png 300w\" sizes=\"(max-width: 591px) 100vw, 591px\" \/><\/li>\n<\/ol>\n<h4>iCloud\u30e1\u30fc\u30eb<\/h4>\n<ol>\n<li>\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u6a2a\u4e09\u70b9\u30ea\u30fc\u30c0\uff08\u2026\uff09\u304b\u3089\u300c\u3059\u3079\u3066\u306e\u30d8\u30c3\u30c0\u3092\u8868\u793a\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/icloud_01.png\" alt=\"\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u6a2a\u4e09\u70b9\u30ea\u30fc\u30c0\u304b\u3089\u300c\u3059\u3079\u3066\u306e\u30d8\u30c3\u30c0\u3092\u8868\u793a\u300d\u3092\u9078\u629e\" width=\"100%\" class=\"aligncenter size-full wp-image-19985\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/icloud_01.png 713w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/icloud_01-300x221.png 300w\" sizes=\"(max-width: 713px) 100vw, 713px\" \/><\/li>\n<li>\u30d8\u30c3\u30c0\u60c5\u5831\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/icloud_02.png\" alt=\"\u30d8\u30c3\u30c0\u60c5\u5831\" width=\"100%\" class=\"aligncenter size-full wp-image-19986\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/icloud_02.png 668w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/icloud_02-300x106.png 300w\" sizes=\"(max-width: 668px) 100vw, 668px\" \/><\/li>\n<\/ol>\n<h4>Outlook<\/h4>\n<ol>\n<li>\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u6a2a\u4e09\u70b9\u30ea\u30fc\u30c0\uff08\u2026\uff09\u304b\u3089\u300c\u8868\u793a\u300d&gt;\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d\u306e\u9806\u306b\u9078\u629e\u3057\u307e\u3059\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/outlook_01.png\" alt=\"\u5bfe\u8c61\u306e\u30e1\u30fc\u30eb\u3092\u9078\u629e\u3057\u3001\u6a2a\u4e09\u70b9\u30ea\u30fc\u30c0\u304b\u3089\u300c\u8868\u793a\u300d\u300c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bd\u30fc\u30b9\u3092\u8868\u793a\u300d\u306e\u9806\u306b\u9078\u629e\" width=\"100%\" class=\"aligncenter size-full wp-image-19987\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/outlook_01.png 855w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/outlook_01-300x209.png 300w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/outlook_01-768x536.png 768w\" sizes=\"(max-width: 855px) 100vw, 855px\" \/><\/li>\n<li>\u30d8\u30c3\u30c0\u60c5\u5831\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<br \/><img decoding=\"async\" src=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/outlook_02.png\" alt=\"\u30d8\u30c3\u30c0\u60c5\u5831\" width=\"100%\" class=\"aligncenter size-full wp-image-19988\" srcset=\"https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/outlook_02.png 710w, https:\/\/sendgrid.kke.co.jp\/blog\/wp\/wp-content\/uploads\/2026\/02\/outlook_02-300x54.png 300w\" sizes=\"(max-width: 710px) 100vw, 710px\" \/><\/li>\n<\/ol>\n<h3>\u307e\u3068\u3081<\/h3>\n<p>\u3053\u3053\u307e\u3067\u3001\u4e3b\u8981\u306a\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30d8\u30c3\u30c0\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u7d39\u4ecb\u3057\u306a\u304b\u3063\u305f\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u3082\u540c\u69d8\u306e\u6a5f\u80fd\u304c\u3042\u308b\u306f\u305a\u306a\u306e\u3067\u3001\u305c\u3072\u64cd\u4f5c\u624b\u9806\u3092\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u306a\u304a\u3001\u5f0a\u793e\u30b5\u30dd\u30fc\u30c8\u3078\u304a\u554f\u3044\u5408\u308f\u305b\u3092\u3044\u305f\u3060\u304f\u969b\u306b\u3082\u3001\u30d8\u30c3\u30c0\u60c5\u5831\u306e\u63d0\u4f9b\u3092\u304a\u9858\u3044\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30b5\u30dd\u30fc\u30c8\u30c1\u30fc\u30e0\u3067\u306f\u3001\u63d0\u4f9b\u3044\u305f\u3060\u3044\u305f\u30d8\u30c3\u30c0\u304b\u3089\u300c\u78ba\u304b\u306bSendGrid\u3092\u7d4c\u7531\u3057\u305f\u30e1\u30fc\u30eb\u304b\u300d\u300cSMTP\u30ea\u30ec\u30fc\u306e\u7d4c\u8def\u300d\u300c\u5dee\u51fa\u4eba\u306e\u60c5\u5831\u304c\u6b63\u5f53\u304b\u300d\u300cSPF\/DKIM\u8a8d\u8a3c\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u7406\u7531\u300d\u306a\u3069\u3001\u69d8\u3005\u306a\u60c5\u5831\u3092\u8aad\u307f\u53d6\u3063\u3066\u8abf\u67fb\u306b\u5f79\u7acb\u3066\u3066\u3044\u307e\u3059\u3002<br \/>\n\u30d8\u30c3\u30c0\u60c5\u5831\u306e\u5185\u5bb9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u300c<a href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=9949\" rel=\"noopener\" target=\"_blank\">\u30e1\u30fc\u30eb\u30d8\u30c3\u30c0\u5165\u9580<\/a>\u300d\u306e\u8a18\u4e8b\u3082\u3042\u308f\u305b\u3066\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b \u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001Gmail\u30fbYahoo!\u30e1\u30fc\u30eb\u30fbiCloud\u30e1\u30fc\u30eb\u30fbOutlook\uff08\u203b\uff09\u306e4\u3064\u306e\u4e3b\u8981\u306a\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u30e1\u30fc\u30eb\u306e\u30d8\u30c3\u30c0\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u30d8\u30c3\u30c0\u60c5\u5831\u306b\u306f\u3001\u4e3b\u306b\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u7d4c\u8def\u3084\u9001 <a class=\"read-more\" href=\"https:\/\/sendgrid.kke.co.jp\/blog\/?p=14639\">&#8230;\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":19977,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-14639","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-best-practices"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14639"}],"version-history":[{"count":5,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14639\/revisions"}],"predecessor-version":[{"id":19992,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/14639\/revisions\/19992"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/media\/19977"}],"wp:attachment":[{"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sendgrid.kke.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}