Google chose to change the wording in their 550 error. 550-5.7.1 [2001:-my-IPv6-address-here- 16] Our system has detected 550-5.7.1 that this message does not meet IPv6 sending guidelines regarding PTR 550-5.7.1 records and authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=ipv6_authentication_error for more 550 5.7.1 information. dj7si12191118bkc.191 - gsmtp (in reply to end of DATA command)) My smtp_reply_filter is: /^5(\d\d )5(.*information. \S+ - gsmtp.*)/ 4${1}4$2 That seems to do the job of luring Postfix for doing a second attempt via IPv4. Now Google should be happy, they get 2 attempts instead of one. Anyways, my users are happy. Their mail gets delivered. See my blog post <http://blog.hqcodeshop.fi/archives/122-Fixing-Googles-new-IPv6-mail-policy-with-Postfix.html> about my fix.
-- View this message in context: http://postfix.1071664.n5.nabble.com/disable-ipv6-when-sending-to-gmail-tp60672p62278.html Sent from the Postfix Users mailing list archive at Nabble.com.
