{"id":11426,"date":"2026-07-10T10:52:30","date_gmt":"2026-07-10T01:52:30","guid":{"rendered":"https:\/\/www.k-in.co.jp\/niwakan\/?p=11426"},"modified":"2026-08-07T16:51:32","modified_gmt":"2026-08-07T07:51:32","slug":"postfix%e3%81%ae%e8%a8%ad%e5%ae%9a%e3%82%92%e5%b0%91%e3%81%97%e8%aa%bf%e6%95%b4%e3%81%97%e3%81%9f","status":"publish","type":"post","link":"https:\/\/www.k-in.co.jp\/niwakan\/archives\/2026\/07\/11426\/","title":{"rendered":"postfix\u306e\u8a2d\u5b9a\u3092\u5c11\u3057\u8abf\u6574\u3057\u305f"},"content":{"rendered":"<p>dovecot\u306eerror.log\u306e\u3053\u306e\u3088\u3046\u306a\u30ed\u30b0\u304c\u6b8b\u308b\u3002<br \/>\n\u3053\u308c\u306f\u4ee5\u524d\u304b\u3089\u305a\u3063\u3068\u3067\u3042\u308b\u3002<\/p>\n<pre class=\"height:300 lang:default decode:true\" title=\"error.log\">2026-07-07 22:54:41 auth: Error: auth client 0 disconnected with 1 pending requests: EOF\r\n2026-07-08 08:03:47 auth: Error: auth client 0 disconnected with 1 pending requests: EOF\r\n2026-07-08 11:36:01 auth: Error: auth client 0 disconnected with 1 pending requests: EOF<\/pre>\n<p>\u3053\u308c\u4f55\u3068\u304b\u306a\u3089\u306a\u3044\u304b\u3068\u60a9\u3093\u3067\u3044\u305f\u3002<br \/>\n<!--more--><\/p>\n<p>postfix\u5074\u3067\u884c\u308f\u308c\u3066\u3044\u308b\u3001\u3053\u3044\u3064\u3089\u304c\u539f\u56e0\u3060\u308d\u3046\u304b\u3089\u3060\u3002<\/p>\n<pre class=\"height:300 lang:default decode:true\" title=\"postfix.log\">Jul 10 05:37:05 mail postfix\/smtpd[92068]: connect from unknown[107.155.15.206]\r\nJul 10 05:37:05 mail postfix\/smtpd[92068]: NOQUEUE: lost connection after EHLO from unknown[107.155.15.206]\r\nJul 10 05:37:05 mail postfix\/smtpd[92068]: disconnect from unknown[107.155.15.206] ehlo=1 auth=0\/1 commands=1\/2<\/pre>\n<p>\u305d\u3046\u3001submission\u306b\u5bfe\u3059\u308b\u30d4\u30f3\u30dd\u30f3\u30c0\u30c3\u30b7\u30e5\u3067\u3042\u308b\u3002<\/p>\n<p>\u305d\u3053\u3067Gemini\u3055\u3093\u306b\u805e\u3044\u305f\u300c\u76f4\u63a5submission\u3092\u53e9\u3044\u3066\u3044\u308b\u306e\u3067\u3001\u300eunknown\u306b\u306f\u8a8d\u8a3c\u307e\u3067\u901a\u3055\u305b\u306a\u3044\u300f\u3063\u3066postfix\u5074\u3067\u5b9a\u7fa9\u3067\u304d\u308b\u3068\u826f\u3044\u306e\u3060\u3051\u308c\u3069\u306d\u300d\u3068\u3002<br \/>\n\u77e5\u6075\u30df\u30cb\u3055\u3093\u306e\u7b54\u3048\u3068\u3057\u3066\u4e8c\u3064\u63d0\u793a\u3055\u308c\u305f\u3093\u3060\u3002<\/p>\n<div style=\"background: #F2EAD4; padding: 15px; border: 0px solid #F2EAD4; border-radius: 10px; word-break: break-all;\">postfix\u5074\u3067\u300c\u8a8d\u8a3c\u3092\u8a66\u307f\u308b\u524d\u306b\u3001\u63a5\u7d9a\u5143\u304c\u4fe1\u983c\u3067\u304d\u308b\u304b\u5224\u65ad\u3059\u308b\u300d\u3068\u3044\u3046\u70b9\u306b\u304a\u3044\u3066\u3001\u304a\u3063\u3061\u3083\u3093\u3055\u3093\u306e\u73fe\u5728\u306e\u904b\u7528\u306b\u52a0\u3048\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u300c\u306b\u308f\u7ba1\u6d41\u300d\u306e\u8abf\u6574\u3068\u3057\u3066\u76f8\u6027\u304c\u826f\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<br \/>\n<strong>1. smtpd_client_restrictions \u306e\u9806\u5e8f\u3068 reject_unknown_client_hostname<\/strong><br \/>\n\u3082\u3057\u672a\u8a2d\u5b9a\u3067\u3042\u308c\u3070\u3001main.cf \u306e smtpd_client_restrictions \u306e\u4e00\u756a\u6700\u521d\u306e\u65b9\u306b\u3001\u53b3\u3057\u3081\u306e\u30d5\u30a3\u30eb\u30bf\u3092\u7f6e\u304f\u306e\u304c\u5b9a\u77f3\u3067\u3059\u3002<br \/>\n<strong>2.smtpd_helo_required = yes<\/strong><br \/>\n\u3053\u308c\u3082\u57fa\u672c\u3067\u3059\u304c\u3001\u91cd\u8981\u3067\u3059\u3002<\/div>\n<p>Gemini\u3055\u3093\u306e\u63d0\u6848\u3068\u3001\u3053\u3061\u3089\u306f\u8981\u671b\u3084\u7591\u554f\u70b9\u3068\u5fdc\u7b54\u3057\u3066\u3044\u304f\u3068\u7d50\u69cb\u7406\u89e3\u3082\u9032\u3080\u3002<br \/>\n\u7d50\u679c\u3002<\/p>\n<pre class=\"height:300 lang:default decode:true\" title=\"main.cf\">postfix\/main.cf\u306e\u8a72\u5f53\u7b87\u6240\u306b\u591a\u5c11\u306e\u8abf\u6574\u3068\u8ffd\u52a0\u3002\r\nsmtpd_client_restrictions =\r\n     permit_mynetworks,\r\n     hash:\/opt\/local\/etc\/postfix\/access,\r\n     cidr:\/opt\/local\/etc\/postfix\/access_cidr,\r\n     cidr:\/opt\/local\/etc\/postfix\/reject_cidr,\r\n     reject_unknown_client_hostname,\r\n     permit_sasl_authenticated,\r\n     permit\r\n\r\nsmtpd_helo_restrictions =\r\n    permit_mynetworks,\r\n    check_client_access hash:\/opt\/local\/etc\/postfix\/access,\r\n    reject_invalid_helo_hostname,\r\n    reject_non_fqdn_helo_hostname,\r\n    reject_unknown_helo_hostname,\r\n    permit_sasl_authenticated,\r\n    permit<\/pre>\n<p>\u307e\u305a\u306f\u9806\u756a\u3002<br \/>\n\u6700\u521d\u306bsmtpd_client_restrictions\u304c\u52d5\u304f\u3002\u3053\u3053\u3067\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304d\u305f\u76f8\u624b\u306eip\u7d61\u307f\u306e\u78ba\u8a8d\u304c\u3055\u308c\u308b\u3002<br \/>\n\u6b21\u306bsmtpd_helo_restrictions\u304c\u52d5\u304f\u3002\u3053\u3053\u3067\u66f4\u306b\u5148\u306e\u76f8\u624b\u306e\u60c5\u5831\u3092\u78ba\u304b\u3081\u3066\u3086\u304d\u3001\u6700\u5f8c\u306b\u8a8d\u8a3c\u3068\u306a\u308b\u3002<\/p>\n<p>smtpd_client_restrictions\u306f\u3001\u5148\u306b\u78ba\u5b9a\u8005\uff08OK or reject\uff09\u3092\u9078\u5225\u3059\u308b\u3002<br \/>\npermit_mynetworks,\u3000\uff03\u81ea\u5206\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306fOK<br \/>\nhash:\/opt\/local\/etc\/postfix\/access,\u3000\u3000\u3000\u3000\uff03\u3053\u3053\u306b\u306fOK\u3068REJECT\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u66f8\u304b\u308c\u3066\u3044\u308b<br \/>\ncidr:\/opt\/local\/etc\/postfix\/access_cidr,\u3000\uff03\u3053\u3053\u306b\u306f\u901a\u3059\u3079\u304dip &#038; ip range\u304c\u66f8\u304b\u308c\u3066\u3044\u308b<br \/>\ncidr:\/opt\/local\/etc\/postfix\/reject_cidr,\u3000\uff03\u3053\u3053\u306b\u306f\u6392\u9664\u3059\u308b\u3079\u304dip &#038; ip range\u304c\u66f8\u304b\u308c\u3066\u3044\u308b<br \/>\n\u305d\u308c\u304b\u3089\u3001\u3053\u308c\u3092\u8ffd\u52a0\u3002<br \/>\n<strong>reject_unknown_helo_hostname<\/strong>,\u3000\uff03\u30db\u30b9\u30c8\u540d\u304c\u4e0d\u660e\u306a\u3082\u306e\u306f\u6392\u9664\uff08\u4eca\u56de\u306e\u76ee\u7389\uff09<br \/>\nunknown[107.155.15.206]\u307f\u305f\u3044\u306e\u304c\u8a8d\u8a3c\u52d5\u4f5c\u524d\u306b\u843d\u3068\u3055\u308c\u308b\u3002<br \/>\n\u6700\u5f8c\u306b\u6f38\u304f\u8a8d\u8a3c\u78ba\u8a8d\uff08permit_sasl_authenticated\uff09\u306b\u5165\u308b\u306e\u3067\u3001unknown\u304cdovecot\u8a8d\u8a3c\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3002<br \/>\n\u3053\u308c\u3067dovecot\u306eerror.log\u306f\u3060\u3044\u3076\u9759\u304b\u306b\u306a\u308b\u3060\u308d\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>dovecot\u306eerror.log\u306e\u3053\u306e\u3088\u3046\u306a\u30ed\u30b0\u304c\u6b8b\u308b\u3002 \u3053\u308c\u306f\u4ee5\u524d\u304b\u3089\u305a\u3063\u3068\u3067\u3042\u308b\u3002 2026-07-07 22:54:41 auth: Error: auth client 0 disconnected with  &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.k-in.co.jp\/niwakan\/archives\/2026\/07\/11426\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;postfix\u306e\u8a2d\u5b9a\u3092\u5c11\u3057\u8abf\u6574\u3057\u305f&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[246],"tags":[177,175],"class_list":["post-11426","post","type-post","status-publish","format-standard","hentry","category-my-macmini-server","tag-dovecot","tag-postfix"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/posts\/11426","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/comments?post=11426"}],"version-history":[{"count":2,"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/posts\/11426\/revisions"}],"predecessor-version":[{"id":11753,"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/posts\/11426\/revisions\/11753"}],"wp:attachment":[{"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/media?parent=11426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/categories?post=11426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.k-in.co.jp\/niwakan\/wp-json\/wp\/v2\/tags?post=11426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}