{"id":11248,"date":"2026-06-30T11:28:20","date_gmt":"2026-06-30T02:28:20","guid":{"rendered":"https:\/\/www.k-in.co.jp\/niwakan\/?p=11248"},"modified":"2026-07-06T11:34:43","modified_gmt":"2026-07-06T02:34:43","slug":"postfix%e3%81%ae%e6%96%b0%e3%81%97%e3%81%84%e3%82%bf%e3%82%a4%e3%83%97%e3%81%ae%e3%83%ad%e3%82%b0%e3%82%92%e7%99%ba%e8%a6%8b","status":"publish","type":"post","link":"https:\/\/www.k-in.co.jp\/niwakan\/archives\/2026\/06\/11248\/","title":{"rendered":"postfix\u306e\u65b0\u3057\u3044\u30bf\u30a4\u30d7\u306e\u30ed\u30b0\u3092\u767a\u898b"},"content":{"rendered":"

\u666e\u6bb5\u3088\u304f\u898b\u308b\u30ed\u30b0\u3068\u306f\u9055\u3063\u305f\u3082\u306e\u304c\u51fa\u3066\u304d\u305f\u306e\u3067\u6298\u89d2\u3060\u304b\u3089\u66f8\u3044\u3066\u304a\u304f\u3002
\n<\/p>\n

\u6700\u521d\u306bpostfix\u306emain.cf\u306e\u4e00\u90e8\u3092\u66f8\u3044\u3066\u304a\u3053\u3046\u3002<\/p>\n

postscreen_dnsbl_sites =\r\n     zen.spamhaus.org*3\r\n     b.barracudacentral.org=127.0.0.[2..11]*2\r\n     bl.spameatingmonkey.net*2\r\n     bl.spamcop.net\r\n     dnsbl.sorbs.net\r\n     list.dnswl.org=127.[0..255].[0..255].0*-2,\r\n     list.dnswl.org=127.[0..255].[0..255].1*-4,\r\n     list.dnswl.org=127.[0..255].[0..255].[2..3]*-6<\/pre>\n
postscreen\u304c\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u304f\u904e\u7a0b\u304c\u5224\u308b\u3068\u601d\u3046\u3002
\n\u305d\u3057\u3066\u3053\u306e\u8a2d\u5b9a\u306b\u5f15\u3063\u304b\u304b\u3063\u3066REJECT\u3055\u308c\u308b\u306e\u304c\u30ed\u30b0\u3067\u898b\u3066\u53d6\u308c\u308b\u3002<\/p>\n
Jun 29 06:30:04 mail postfix\/postscreen[67482]: CONNECT from [178.16.53.109]:504 26 to [192.168.0.35]:25\r\nJun 29 06:30:04 mail postfix\/dnsblog[67484]: addr 178.16.53.109 listed by domain zen.spamhaus.org as 127.0.0.2\r\nJun 29 06:30:04 mail postfix\/dnsblog[67484]: addr 178.16.53.109 listed by domain zen.spamhaus.org as 127.0.0.4\r\nJun 29 06:30:04 mail postfix\/dnsblog[67484]: addr 178.16.53.109 listed by domain zen.spamhaus.org as 127.0.0.3\r\nJun 29 06:30:04 mail postfix\/dnsblog[67484]: addr 178.16.53.109 listed by domain zen.spamhaus.org as 127.0.0.9\r\nJun 29 06:30:04 mail postfix\/postscreen[67482]: PREGREET 11 after 0.3 from [178.16.53.109]:50426: EHLO User\\r\\n\r\nJun 29 06:30:04 mail postfix\/postscreen[67482]: DISCONNECT [178.16.53.109]:50426<\/pre>\n
\u4e0a\u306e\u30ed\u30b0\u306fzen.spamhaus.org\u306ereturn code list<\/a>\u306b\u3082\u4f3c\u305f\u306e\u3092\u66f8\u3044\u305f\u304b\u3002
\n127.0.0.2\uff1aspam ip
\n127.0.0.4\uff1a\u30de\u30eb\u30a6\u30a7\u30a2\u611f\u67d3
\n127.0.0.3\uff1a\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u52d5\u7684IP
\n127.0.0.9\uff1abot\u304b\u6c5a\u67d3\u3055\u308c\u305fip
\n\u3068\u8a00\u3063\u305f\u30b9\u30da\u30b7\u30e3\u30eb\u306aip\u3068\u3057\u3066\u3001\u66f4\u306b\u3053\u3053\u3067\u3053\u3061\u3089\u306e\u8fd4\u7b54\u3092\u5f85\u3064\u3053\u3068\u306a\u304fEHLO\u3092\u6295\u3052\u3066\u6765\u305f\uff08BOT\u78ba\u5b9a\uff09\u3067DISCONNECT\u3055\u308c\u305f\u3002
\n\u30b3\u30ec\u306f\u5178\u578b\u7684\u306a\u4f8b\u3067\u3059\u306d\u3002<\/p>\n
Jun 29 06:47:59 mail postfix\/postscreen[67662]: CONNECT from [192.253.248.59]:5916 to [192.168.0.35]:25\r\nJun 29 06:47:59 mail postfix\/dnsblog[67668]: addr 192.253.248.59 listed by domain zen.spamhaus.org as 127.0.0.9\r\nJun 29 06:47:59 mail postfix\/dnsblog[67668]: addr 192.253.248.59 listed by domain zen.spamhaus.org as 127.0.0.2\r\nJun 29 06:47:59 mail postfix\/dnsblog[67668]: addr 192.253.248.59 listed by domain zen.spamhaus.org as 127.0.0.3\r\nJun 29 06:48:05 mail postfix\/postscreen[67662]: DNSBL rank 3 for [192.253.248.59]:5916\r\nJun 29 06:48:05 mail postfix\/postscreen[67662]: DISCONNECT [192.253.248.59]:5916<\/pre>\n
\u3053\u3063\u3061\u306f\u304d\u3061\u3093\u3068EHLO\u3092\u5f85\u3063\u3066\u3044\u305f\u3051\u308c\u3069\u3001\u305d\u306e\u524d\u306bzen.spamhaus.org\u306b\u3088\u3063\u3066\u3001spam\u5224\u5b9a\u3055\u308c\u305f\u306e\u3067DISCONNECT\u3067\u3059\u3002<\/p>\n
\u4eca\u56de\u306e\u306fmain.cf\u306e\u500b\u3005\u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u5f3e\u304b\u308c\u305f\u3082\u306e\u3002\uff08\u521d\u3081\u3066\u898b\u305f\u3088\uff09<\/p>\n
smtpd_recipient_restrictions =\r\n    permit_mynetworks,\r\n    permit_sasl_authenticated,\r\n    check_client_access hash:\/opt\/local\/etc\/postfix\/access,\r\n    check_client_access cidr:\/opt\/local\/etc\/postfix\/access_cidr,\r\n    check_client_access cidr:\/opt\/local\/etc\/postfix\/reject_cidr,\r\n    reject_unauth_destination,\r\n    reject_non_fqdn_sender,\r\n    reject_non_fqdn_recipient,\r\n    reject_unknown_sender_domain,\r\n    reject_invalid_hostname,\r\n    reject_unknown_reverse_client_hostname,\r\n    warn_if_reject reject_unknown_client_hostname,\r\n    warn_if_reject reject_unknown_helo_hostname,\r\n    reject_unverified_recipient,\r\n    reject_non_fqdn_helo_hostname,\r\n    reject_rhsbl_helo           dbl.spamhaus.org,\r\n    reject_rhsbl_reverse_client dbl.spamhaus.org,\r\n    reject_rhsbl_sender         dbl.spamhaus.org,\r\n    permit<\/pre>\n
\u5f3e\u304b\u308c\u305f\u30ed\u30b0\u306f\u3053\u308c\u3002\u4eca\u56de\u306e\u672c\u984c\u3067\u3059\u306d\u3002<\/p>\n
Jun 29 06:21:11 mail postfix\/postscreen[67369]: CONNECT from [210.136.111.14]:34069 to [192.168.0.35]:25\r\nJun 29 06:21:17 mail postfix\/postscreen[67369]: PASS OLD [210.136.111.14]:34069\r\nJun 29 06:21:20 mail postfix\/smtpd\/smtpd[67375]: connect from l0001564.serverhost.jp[210.136.111.14]\r\nJun 29 06:21:20 mail postfix\/verify[67379]: cache btree:\/opt\/local\/var\/lib\/postfix\/verify_cache full cleanup: retained=31 dropped=1 entries\r\nJun 29 06:21:20 mail postfix\/cleanup[67380]: 82DA13438CE0: message-id=<20260628212120.82DA13438CE0@mail.k-in.co.jp>\r\nJun 29 06:21:20 mail postfix\/qmgr[94300]: 82DA13438CE0: from=, size=267, nrcpt=1 (queue active)\r\nJun 29 06:21:20 mail postfix\/cleanup[67380]: 838AB3438CE1: message-id=<20260628212120.838AB3438CE1@mail.k-in.co.jp>\r\nJun 29 06:21:20 mail postfix\/qmgr[94300]: 838AB3438CE1: from=, size=267, nrcpt=1 (queue active)\r\nJun 29 06:21:20 mail postfix\/local[67383]: 838AB3438CE1: passing  to transport=lmtp\r\nJun 29 06:21:20 mail postfix\/lmtp[67384]: 838AB3438CE1: to=, relay=mail.k-in.co.jp[private\/dovecot-lmtp], delay=0.07, delays=0\/0.04\/0.03\/0, tls=none, dsn=5.1.1, status=undeliverable (host mail.k-in.co.jp[private\/dovecot-lmtp] said: 550 5.1.1  User doesn't exist: sales@k-in.co.jp (in reply to RCPT TO command))\r\nJun 29 06:21:20 mail postfix\/qmgr[94300]: 838AB3438CE1: removed\r\nJun 29 06:21:20 mail postfix\/smtp[67382]: discarding EHLO keywords: PIPELINING\r\nJun 29 06:21:20 mail postfix\/smtp[67382]: discarding EHLO keywords: PIPELINING\r\nJun 29 06:21:20 mail postfix\/smtp[67382]: 82DA13438CE0: to=, relay=mail.fkage.com[210.136.111.14]:25, delay=0.16, delays=0\/0.01\/0.13\/0.01, tls=encrypt, dsn=2.1.5, status=deliverable (250 2.1.5 Ok)\r\nJun 29 06:21:20 mail postfix\/qmgr[94300]: 82DA13438CE0: removed\r\nJun 29 06:21:24 mail postfix\/smtpd\/smtpd[67375]: NOQUEUE: reject: RCPT from l0001564.serverhost.jp[210.136.111.14]: 554 5.7.1 Service unavailable; Sender address [info_error@fkage.com] blocked using dbl.spamhaus.org; Listed by DBL, see https:\/\/check.spamhaus.org\/query\/domain\/fkage.com; from= to= proto=ESMTP helo=\r\nJun 29 06:21:24 mail postfix\/smtpd\/smtpd[67375]: disconnect from l0001564.serverhost.jp[210.136.111.14] ehlo=2 starttls=1 mail=1 rcpt=0\/1 data=0\/1 rset=1 quit=1 commands=6\/8<\/pre>\n
Gemini\u3055\u3093\u306e\u89e3\u8aac\u306b\u3088\u308b\u3068\u3001postfix\u304c\u51c4\u3044\u3053\u3068\u3057\u3066\u3044\u307e\u3059\u3002
\n\u3053\u3053\u304b\u3089\u304creject_unverified_recipient<\/strong>\u8fba\u308a\u306e\u8a2d\u5b9a\u304c\u6d3b\u304d\u3066\u304f\u308b\u3068\u3053\u308d\u3089\u3057\u3044\u3067\u3059\u3002
\nqmgr\u304c\u3068\u8a00\u3046\u78ba\u8a8d\u51e6\u7406\uff08\u30ad\u30e5\u30fc\uff09\u3092\u4e8c\u3064\u4f5c\u6210\u3002
\n\u3053\u306e\u30ad\u30e5\u30fc\u3067\u3001\u53d7\u4fe1\u8005\uff0f\u9001\u4fe1\u8005\u306e\u5b58\u5728\u78ba\u8a8d\u3092\u3057\u3066\u3044\u307e\u3059\u3002
\n\u4e00\u65b9\u3067\uff08info_error@fkage.com\u306e\u9001\u308a\u5148\uff09\u3092dovecot-lmtp\u7d4c\u7531\u3067dovecot\u306b\u78ba\u8a8d\u3002dovecot\u306f\u300cUser doesn’t exist\u300d\u3068\u8fd4\u7b54\u3002
\n\u3055\u3089\u306b\u3082\u3046\u4e00\u65b9\u306e\u304csmtp\u3092\u52d5\u304b\u3057\u306e\u5b58\u5728\u30c1\u30a7\u30c3\u30af\u3092\u3059\u308b\u305f\u3081\u306b\u76f8\u624b\u5148\u306email.fkage.com\u306b\u63a5\u7d9a\u3057\u3001\u78ba\u8a8d\u3067\u304d\u305f\uff08deliverable\uff09\u305f\u3081\u6b21\u306e\u5224\u5b9a\u306b\u79fb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u6b21\u306breject_rhsbl_sender dbl.spamhaus.org<\/strong>\u3053\u3053\u306e\u90e8\u5206\u306b\u5f15\u3063\u304b\u304b\u3063\u305f\u3093\u3067\u3057\u3087\u3046\u306d\u3047\u3002
\n\u300cSender address [info_error@fkage.com] blocked using dbl.spamhaus.org\u300d\u306e\u90e8\u5206\u306f\u300c\u9001\u4fe1\u8005\u30a2\u30c9\u30ec\u30b9 [info_error@fkage.com] \u304c dbl.spamhaus.org \u3092\u4f7f\u7528\u3057\u3066\u30d6\u30ed\u30c3\u30af\u3055\u308c\u307e\u3057\u305f\u300d\uff08Google\u7ffb\u8a33\u306b\u3088\u308b\uff09
\nfkage.com\u306e\u540d\u524d\u81ea\u4f53\u304c\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u3068\u3002\u3060\u304b\u3089DISCONNECT\u3067\u3042\u308b\u8a33\u3067\u3002
\nspamhaus\u306fip\u3060\u3051\u3067\u306a\u304f\u3001\u30c9\u30e1\u30a4\u30f3\u3082\u30ea\u30b9\u30c8\u5316\u3055\u308c\u3066\u3044\u308b\u3093\u3067\u3059\u306d\u3047\u3002
\n\u3068\u8a00\u3046\u304a\u8a71\u3067\u3057\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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