postfixでメールが送信されない
Apr 11 20:03:28 localhost postfix/smtp[12713]: 22E9C10C063F: to=<sc@gmail.com>, relay=gmail-smtp-in.l.google.com[2404:6800:4008:c01::1a]:25, delay=1, delays=0.12/0.01/0.37/0.54, dsn=5.7.1, status=bounced (host gmail-smtp-in.l.google.com[2404:6800:4008:c01::1a] said: 550-5.7.1 [2001:e42:103:2:153:121:91:20] Our system has detected that this 550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR records 550-5.7.1 and authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=ipv6_authentication_error for more 550 5.7.1 information. w9si2966434pfi.224 - gsmtp (in reply to end of DATA command))
設定を変更します。
// /etc/postfix/main.cf # Enable IPv4, and IPv6 if supported #inet_protocols = all inet_protocols = ipv4
postfixでめちゃくちゃハマりました。
