{"id":3829,"date":"2026-03-06T16:09:12","date_gmt":"2026-03-06T07:09:12","guid":{"rendered":"https:\/\/kiwamaqs.com\/weblog\/?p=3829"},"modified":"2026-03-06T16:09:15","modified_gmt":"2026-03-06T07:09:15","slug":"acme_sh_mailserver","status":"publish","type":"post","link":"https:\/\/kiwamaqs.com\/weblog\/acme_sh_mailserver\/","title":{"rendered":"Cloudflare DNS-01 \u3068 acme.sh \u3067 Wildcard SSL \u8a3c\u660e\u66f8\u3092\u81ea\u52d5\u66f4\u65b0\u3059\u308b\u65b9\u6cd5\uff08Postfix \/ Dovecot \u5bfe\u5fdc\uff09Mac mini server"},"content":{"rendered":"\n<p>\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u3084\u500b\u4eba\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u3001SSL\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u7ba1\u7406\u306f\u907f\u3051\u3066\u901a\u308c\u306a\u3044\u8ab2\u984c\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\uff08Postfix \/ Dovecot\uff09\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u8a3c\u660e\u66f8\u306e\u671f\u9650\u5207\u308c\u306f\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u8b66\u544a\u3084\u63a5\u7d9a\u30a8\u30e9\u30fc\u306b\u3064\u306a\u304c\u308b\u305f\u3081\u3001\u5b89\u5b9a\u904b\u7528\u306e\u305f\u3081\u306b\u306f\u81ea\u52d5\u66f4\u65b0\u306e\u4ed5\u7d44\u307f\u3092\u69cb\u7bc9\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u306b\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f&nbsp;<strong>acme.sh \u3068 Cloudflare DNS-01\u8a8d\u8a3c<\/strong>\u3092\u5229\u7528\u3057\u3001<\/p>\n\n\n\n<p>\u30fbWildcard SSL\u8a3c\u660e\u66f8\uff08*.example.com\uff09<\/p>\n\n\n\n<p>\u30fb\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\uff08Postfix \/ Dovecot\uff09\u3078\u306e\u9069\u7528<\/p>\n\n\n\n<p>\u30fb\u8a3c\u660e\u66f8\u306e\u5b8c\u5168\u81ea\u52d5\u66f4\u65b0<\/p>\n\n\n\n<p>\u3092\u69cb\u7bc9\u3057\u305f\u624b\u9806\u3092\u30ed\u30b0\u5f62\u5f0f\u3067\u307e\u3068\u3081\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u3067\u306f&nbsp;<strong>\u30dd\u30fc\u30c880\/443\u3092\u958b\u653e\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001Web\u30b5\u30fc\u30d0\u30fc\u3092\u505c\u6b62\u3059\u308b\u5fc5\u8981\u3082\u306a\u3044<\/strong>\u305f\u3081\u3001\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u3084NAS\u74b0\u5883\u3067\u3082\u5b89\u5b9a\u3057\u3066\u904b\u7528\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>\u3053\u306e\u8a18\u4e8b\u3067\u69cb\u7bc9\u3059\u308b\u69cb\u6210<\/strong><\/h1>\n\n\n\n<p>\u4eca\u56de\u69cb\u7bc9\u3059\u308b\u8a3c\u660e\u66f8\u7ba1\u7406\u306e\u69cb\u6210\u306f\u6b21\u306e\u901a\u308a\u3002<\/p>\n\n\n\n<p>Cloudflare DNS<\/p>\n\n\n\n<p>\u2193<\/p>\n\n\n\n<p>DNS-01\u8a8d\u8a3c<\/p>\n\n\n\n<p>\u2193<\/p>\n\n\n\n<p>acme.sh<\/p>\n\n\n\n<p>\u2193<\/p>\n\n\n\n<p>Wildcard SSL\u8a3c\u660e\u66f8<\/p>\n\n\n\n<p>\u2193<\/p>\n\n\n\n<p>Postfix \/ Dovecot \/ Web\u30b5\u30fc\u30d0\u30fc<\/p>\n\n\n\n<p>\u3053\u306e\u69cb\u6210\u3067\u306f&nbsp;<strong>Cloudflare API \u3092\u5229\u7528\u3057\u3066 DNS TXT \u30ec\u30b3\u30fc\u30c9\u3092\u81ea\u52d5\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u8a3c\u660e\u66f8\u8a8d\u8a3c\u3092\u884c\u3046<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>Wildcard\u8a3c\u660e\u66f8\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8<\/strong><\/h1>\n\n\n\n<p>\u901a\u5e38\u306eSSL\u8a3c\u660e\u66f8\u3067\u306f\u3001\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3054\u3068\u306b\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u4f8b<\/p>\n\n\n\n<p>mail.example.com<\/p>\n\n\n\n<p>blog.example.com<\/p>\n\n\n\n<p>vpn.example.com<\/p>\n\n\n\n<p>photos.example.com<\/p>\n\n\n\n<p>\u3057\u304b\u3057 Wildcard\u8a3c\u660e\u66f8\u3092\u53d6\u5f97\u3059\u308b\u3068<\/p>\n\n\n\n<p>*.example.com<\/p>\n\n\n\n<p>\u3068\u3044\u30461\u679a\u306e\u8a3c\u660e\u66f8\u3067&nbsp;<strong>\u3059\u3079\u3066\u306e\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u3092\u30ab\u30d0\u30fc\u3067\u304d\u308b<\/strong>\u3002<\/p>\n\n\n\n<p>\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u30b5\u30fc\u30d3\u30b9\u304c\u5897\u3048\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\u3001Wildcard\u8a3c\u660e\u66f8\u306f\u7ba1\u7406\u3092\u5927\u5e45\u306b\u7c21\u5358\u306b\u3059\u308b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>acme.sh \u3092\u9078\u3076\u7406\u7531<\/strong><\/h1>\n\n\n\n<p>Let\u2019s Encrypt\u8a3c\u660e\u66f8\u3092\u53d6\u5f97\u3059\u308b\u30c4\u30fc\u30eb\u306b\u306f\u4e3b\u306b\u6b21\u306e\u3082\u306e\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>certbot<\/p>\n\n\n\n<p>acme.sh<\/p>\n\n\n\n<p>\u4eca\u56de acme.sh \u3092\u9078\u3093\u3060\u7406\u7531\u306f\u4ee5\u4e0b\u3002<\/p>\n\n\n\n<p>\u30fbDNS\u8a8d\u8a3c\u304c\u7c21\u5358<\/p>\n\n\n\n<p>\u30fbCloudflare API\u9023\u643a\u304c\u6a19\u6e96\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u308b<\/p>\n\n\n\n<p>\u30fb\u8efd\u91cf\u3067\u30b7\u30f3\u30d7\u30eb<\/p>\n\n\n\n<p>\u30fb\u81ea\u52d5\u66f4\u65b0\u304c\u975e\u5e38\u306b\u5b89\u5b9a\u3057\u3066\u3044\u308b<\/p>\n\n\n\n<p>\u7279\u306b&nbsp;<strong>DNS-01\u8a8d\u8a3c\u3068\u306e\u76f8\u6027\u304c\u826f\u3044<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>1 acme.sh \u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/strong><\/h1>\n\n\n\n<p>\u307e\u305a acme.sh \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3002<\/p>\n\n\n\n<p>curl https:\/\/get.acme.sh | sh<\/p>\n\n\n\n<p>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u306f\u30b7\u30a7\u30eb\u74b0\u5883\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3059\u308b\u3002<\/p>\n\n\n\n<p>source ~\/.bashrc<\/p>\n\n\n\n<p>\u307e\u305f\u306f<\/p>\n\n\n\n<p>source ~\/.zshrc<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>2 Let\u2019s Encrypt \u3092\u30c7\u30d5\u30a9\u30eb\u30c8CA\u306b\u8a2d\u5b9a<\/strong><\/h1>\n\n\n\n<p>acme.sh \u306e\u30c7\u30d5\u30a9\u30eb\u30c8CA\u306f ZeroSSL \u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001Let\u2019s Encrypt \u306b\u5909\u66f4\u3059\u308b\u3002<\/p>\n\n\n\n<p>acme.sh \u2013set-default-ca \u2013server letsencrypt<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>3 ACME\u30a2\u30ab\u30a6\u30f3\u30c8\u767b\u9332<\/strong><\/h1>\n\n\n\n<p>\u8a3c\u660e\u66f8\u7ba1\u7406\u7528\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u767b\u9332\u3059\u308b\u3002<\/p>\n\n\n\n<p>acme.sh \u2013register-account -m your-email@example.com<\/p>\n\n\n\n<p>\u3053\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306f&nbsp;<strong>\u8a3c\u660e\u66f8\u671f\u9650\u901a\u77e5\u306a\u3069\u306e\u9023\u7d61\u7528<\/strong>\u3067\u3042\u308a\u3001\u8a3c\u660e\u66f8\u767a\u884c\u305d\u306e\u3082\u306e\u306b\u306f\u95a2\u4fc2\u3057\u306a\u3044\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>4 Cloudflare API Token \u3092\u4f5c\u6210<\/strong><\/h1>\n\n\n\n<p>Cloudflare \u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u304b\u3089 API Token \u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u5fc5\u8981\u306a\u6a29\u9650<\/p>\n\n\n\n<p>Permissions<\/p>\n\n\n\n<p>Zone \u2192 DNS \u2192 Edit<\/p>\n\n\n\n<p>\u5bfe\u8c61\u30be\u30fc\u30f3<\/p>\n\n\n\n<p>example.com<\/p>\n\n\n\n<p>\u4f5c\u6210\u5f8c\u3001API Token \u3092\u63a7\u3048\u3066\u304a\u304f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>5 Cloudflare API Token \u3092\u74b0\u5883\u5909\u6570\u306b\u8a2d\u5b9a<\/strong><\/h1>\n\n\n\n<p>Cloudflare API Token \u3092\u74b0\u5883\u5909\u6570\u3068\u3057\u3066\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n<p>export CF_Token=\u201cYOUR_CLOUDFLARE_API_TOKEN\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>6 Wildcard SSL\u8a3c\u660e\u66f8\u306e\u767a\u884c<\/strong><\/h1>\n\n\n\n<p>DNS-01\u8a8d\u8a3c\u3092\u5229\u7528\u3057\u3066\u8a3c\u660e\u66f8\u3092\u53d6\u5f97\u3059\u308b\u3002<\/p>\n\n\n\n<p>acme.sh \u2013issue&nbsp;<\/p>\n\n\n\n<p>-d example.com&nbsp;<\/p>\n\n\n\n<p>-d \u201c*.example.com\u201d&nbsp;<\/p>\n\n\n\n<p>\u2013dns dns_cf<\/p>\n\n\n\n<p>\u6210\u529f\u3059\u308b\u3068\u8a3c\u660e\u66f8\u306f\u6b21\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u751f\u6210\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<p>~\/.acme.sh\/example.com_ecc\/<\/p>\n\n\n\n<p>\u3053\u3053\u306b\u306f\u6b21\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u751f\u6210\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<p>example.com.cer<\/p>\n\n\n\n<p>example.com.key<\/p>\n\n\n\n<p>ca.cer<\/p>\n\n\n\n<p>fullchain.cer<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>7 \u30b5\u30fc\u30d0\u30fc\u7528\u8a3c\u660e\u66f8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u4f5c\u6210<\/strong><\/h1>\n\n\n\n<p>\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u53c2\u7167\u3057\u3084\u3059\u3044\u5834\u6240\u306b\u8a3c\u660e\u66f8\u3092\u914d\u7f6e\u3059\u308b\u3002<\/p>\n\n\n\n<p>sudo mkdir -p \/etc\/ssl\/example<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>8 \u8a3c\u660e\u66f8\u3092\u30b5\u30fc\u30d0\u30fc\u7528\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/strong><\/h1>\n\n\n\n<p>\u8a3c\u660e\u66f8\u66f4\u65b0\u6642\u306b\u3082\u81ea\u52d5\u53cd\u6620\u3055\u308c\u308b\u3088\u3046\u306b&nbsp;install-cert&nbsp;\u3092\u4f7f\u3046\u3002<\/p>\n\n\n\n<p>acme.sh \u2013install-cert -d example.com \u2013ecc&nbsp;<\/p>\n\n\n\n<p>\u2013key-file \/etc\/ssl\/example\/key.pem&nbsp;<\/p>\n\n\n\n<p>\u2013fullchain-file \/etc\/ssl\/example\/fullchain.pem&nbsp;<\/p>\n\n\n\n<p>\u2013reloadcmd \u201csudo postfix reload; sudo dovecot reload\u201d<\/p>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a<\/p>\n\n\n\n<p>\u8a3c\u660e\u66f8\u66f4\u65b0<\/p>\n\n\n\n<p>\u2193<\/p>\n\n\n\n<p>Postfix reload<\/p>\n\n\n\n<p>\u2193<\/p>\n\n\n\n<p>Dovecot reload<\/p>\n\n\n\n<p>\u304c\u81ea\u52d5\u3067\u5b9f\u884c\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>9 Postfix \u306e\u8a3c\u660e\u66f8\u8a2d\u5b9a<\/strong><\/h1>\n\n\n\n<p>Postfix \u306e TLS\u8a3c\u660e\u66f8\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3002<\/p>\n\n\n\n<p>sudo postconf -e \u201csmtpd_tls_cert_file = \/etc\/ssl\/example\/fullchain.pem\u201d<\/p>\n\n\n\n<p>sudo postconf -e \u201csmtpd_tls_key_file = \/etc\/ssl\/example\/key.pem\u201d<\/p>\n\n\n\n<p>\u8a2d\u5b9a\u53cd\u6620<\/p>\n\n\n\n<p>sudo postfix reload<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>10 Dovecot \u306e\u8a3c\u660e\u66f8\u8a2d\u5b9a<\/strong><\/h1>\n\n\n\n<p>Dovecot \u306e SSL\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u4f8b<\/p>\n\n\n\n<p>\/etc\/dovecot\/conf.d\/10-ssl.conf<\/p>\n\n\n\n<p>\u8a2d\u5b9a\u5185\u5bb9<\/p>\n\n\n\n<p>ssl_cert = &lt;\/etc\/ssl\/example\/fullchain.pem<\/p>\n\n\n\n<p>ssl_key = &lt;\/etc\/ssl\/example\/key.pem<\/p>\n\n\n\n<p>\u53cd\u6620<\/p>\n\n\n\n<p>sudo dovecot reload<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>11 \u8a3c\u660e\u66f8\u306e\u52d5\u4f5c\u78ba\u8a8d<\/strong><\/h1>\n\n\n\n<p>IMAP\u30b5\u30fc\u30d0\u30fc\u306e\u8a3c\u660e\u66f8\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n\n\n\n<p>openssl s_client -connect mail.example.com:993 -servername mail.example.com &lt;\/dev\/null 2&gt;\/dev\/null | openssl x509 -noout -subject -issuer -dates<\/p>\n\n\n\n<p>\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8<\/p>\n\n\n\n<p>issuer=Let\u2019s Encrypt<\/p>\n\n\n\n<p>subject=CN=example.com<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>12 \u81ea\u52d5\u66f4\u65b0\u306e\u78ba\u8a8d<\/strong><\/h1>\n\n\n\n<p>acme.sh \u306f\u81ea\u52d5\u7684\u306b cron \u3092\u767b\u9332\u3059\u308b\u3002<\/p>\n\n\n\n<p>crontab -l<\/p>\n\n\n\n<p>\u4f8b<\/p>\n\n\n\n<p>42 7 * * * ~\/.acme.sh\/acme.sh \u2013cron<\/p>\n\n\n\n<p>\u3053\u306e\u5834\u5408\u3001\u6bce\u65e5 7:42 \u306b\u8a3c\u660e\u66f8\u66f4\u65b0\u30c1\u30a7\u30c3\u30af\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<p>\u8a3c\u660e\u66f8\u306f\u901a\u5e38<\/p>\n\n\n\n<p>\u6709\u52b9\u671f\u9650 90\u65e5<\/p>\n\n\n\n<p>\u66f4\u65b0\u958b\u59cb \u7d0430\u65e5\u524d<\/p>\n\n\n\n<p>\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u81ea\u52d5\u66f4\u65b0\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>\u3053\u306e\u69cb\u6210\u306e\u30e1\u30ea\u30c3\u30c8<\/strong><\/h1>\n\n\n\n<p>\u25a0 \u30dd\u30fc\u30c8\u958b\u653e\u4e0d\u8981<\/p>\n\n\n\n<p>DNS\u8a8d\u8a3c\u306e\u305f\u3081 80 \/ 443 \u30dd\u30fc\u30c8\u306e\u958b\u653e\u304c\u4e0d\u8981<\/p>\n\n\n\n<p>\u25a0 Web\u30b5\u30fc\u30d0\u30fc\u505c\u6b62\u4e0d\u8981<\/p>\n\n\n\n<p>HTTP\u8a8d\u8a3c\u3068\u9055\u3044 Web\u30b5\u30fc\u30d0\u30fc\u3092\u505c\u6b62\u3059\u308b\u5fc5\u8981\u304c\u306a\u3044<\/p>\n\n\n\n<p>\u25a0 Wildcard\u8a3c\u660e\u66f8<\/p>\n\n\n\n<p>1\u679a\u3067\u8907\u6570\u30b5\u30fc\u30d3\u30b9\u3092\u30ab\u30d0\u30fc<\/p>\n\n\n\n<p>mail.example.com<\/p>\n\n\n\n<p>blog.example.com<\/p>\n\n\n\n<p>vpn.example.com<\/p>\n\n\n\n<p>photos.example.com<\/p>\n\n\n\n<p>\u25a0 \u5b8c\u5168\u81ea\u52d5\u66f4\u65b0<\/p>\n\n\n\n<p>\u8a3c\u660e\u66f8\u66f4\u65b0\u5f8c\u306b Postfix \/ Dovecot \u304c\u81ea\u52d5 reload<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>\u307e\u3068\u3081<\/strong><\/h1>\n\n\n\n<p>acme.sh \u3068 Cloudflare DNS-01 \u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067<\/p>\n\n\n\n<p>\u30fbWildcard SSL\u8a3c\u660e\u66f8<\/p>\n\n\n\n<p>\u30fb\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u5bfe\u5fdc<\/p>\n\n\n\n<p>\u30fb\u5b8c\u5168\u81ea\u52d5\u66f4\u65b0<\/p>\n\n\n\n<p>\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u5b9f\u73fe\u3067\u304d\u308b\u3002<\/p>\n\n\n\n<p>\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u3053\u306e\u69cb\u6210\u306f&nbsp;<strong>SSL\u8a3c\u660e\u66f8\u7ba1\u7406\u306e\u8ca0\u62c5\u3092\u307b\u307c\u30bc\u30ed\u306b\u3059\u308b<\/strong>\u305f\u3081\u975e\u5e38\u306b\u6709\u52b9\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u65e9\u3081\u306b\u5c0e\u5165\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u5f37\u304f\u304a\u3059\u3059\u3081\u3059\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u3084\u500b\u4eba\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u3001SSL\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u7ba1\u7406\u306f\u907f\u3051\u3066\u901a\u308c\u306a\u3044\u8ab2\u984c\u3067\u3042\u308b\u3002 \u7279\u306b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\uff08Postfix \/ Dovecot\uff09\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u8a3c\u660e\u66f8\u306e\u671f\u9650\u5207\u308c\u306f\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u8b66\u544a\u3084\u63a5\u7d9a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"_lightning_design_setting":{"layout":"default"},"footnotes":""},"categories":[4],"tags":[26,27,24,25],"class_list":["post-3829","post","type-post","status-publish","format-standard","hentry","category-mac","tag-acme-sh","tag-dns-01","tag-dovecot","tag-postfix"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cloudflare DNS-01 \u3068 acme.sh \u3067 Wildcard SSL \u8a3c\u660e\u66f8\u3092\u81ea\u52d5\u66f4\u65b0\u3059\u308b\u65b9\u6cd5\uff08Postfix \/ Dovecot \u5bfe\u5fdc\uff09Mac mini server - Think about<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiwamaqs.com\/weblog\/acme_sh_mailserver\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cloudflare DNS-01 \u3068 acme.sh \u3067 Wildcard SSL \u8a3c\u660e\u66f8\u3092\u81ea\u52d5\u66f4\u65b0\u3059\u308b\u65b9\u6cd5\uff08Postfix \/ Dovecot \u5bfe\u5fdc\uff09Mac mini server - Think about\" \/>\n<meta property=\"og:description\" content=\"\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u3084\u500b\u4eba\u30b5\u30fc\u30d0\u30fc\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u3001SSL\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u7ba1\u7406\u306f\u907f\u3051\u3066\u901a\u308c\u306a\u3044\u8ab2\u984c\u3067\u3042\u308b\u3002 \u7279\u306b\u30e1\u30fc\u30eb\u30b5\u30fc\u30d0\u30fc\uff08Postfix \/ Dovecot\uff09\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u8a3c\u660e\u66f8\u306e\u671f\u9650\u5207\u308c\u306f\u30e1\u30fc\u30eb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u8b66\u544a\u3084\u63a5\u7d9a [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kiwamaqs.com\/weblog\/acme_sh_mailserver\/\" \/>\n<meta property=\"og:site_name\" content=\"Think about\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-06T07:09:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-06T07:09:15+00:00\" \/>\n<meta name=\"author\" content=\"Kiwamaq\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kiwamaq\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"9\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/kiwamaqs.com\\\/weblog\\\/acme_sh_mailserver\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/kiwamaqs.com\\\/weblog\\\/acme_sh_mailserver\\\/\"},\"author\":{\"name\":\"Kiwamaq\",\"@id\":\"https:\\\/\\\/kiwamaqs.com\\\/weblog\\\/#\\\/schema\\\/person\\\/f452bf27fc892ae1d2cd299302c8df3e\"},\"headline\":\"Cloudflare DNS-01 \u3068 acme.sh \u3067 Wildcard SSL \u8a3c\u660e\u66f8\u3092\u81ea\u52d5\u66f4\u65b0\u3059\u308b\u65b9\u6cd5\uff08Postfix \\\/ Dovecot \u5bfe\u5fdc\uff09Mac mini 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