Andreas Herrmann: > On 10/07/13 16:25, Wietse Venema wrote: > > And here is the corrected example in one place. BTW it seems the > > real fix is to set up one PTR record, with a matching AAAA record. > > I have a correct PTR and also got the error: > > <***@gmail.com>: host > gmail-smtp-in.l.google.com[2a00:1450:4001:c02::1b] said: 550-5.7.1 > [2a01:4f8:d16:4114::2 1] Our system has detected an unusual rate > 550-5.7.1 of unsolicited mail originating from your IP address. To
Hmm. That is a different response than the one I saw reported in http://marc.info/?l=postfix-users&m=137702158131907&w=2 550-5.7.1 [2a01:e35:8ae7:65f0::2 16] The sender does not meet basic ipv6 550-5.7.1 sending guidelines of authentication and rdns resolution of sending 550-5.7.1 ip. Please review 550 5.7.1 https://support.google.com/mail/answer/81126for more information. In both cases they refer to the same instructions for bulk mail senders that suggest using RDNS, SPF, DKIM, and separation of mail streams. It may be that their "bulk sender" threshold is lower than you expect. Wietse
