Perhaps this should go to the bind list, but all of my checking shows my
ipv6 ptr record is working.
This started, I think, last week. I was running an old mailserver and
sent many an email to the cubieboard list.
Just today I finally upgraded my mailserver, but still get the bounce.
My current system is running Redsleeve 6 (Centos 6 for ARM), and
postfix-2.6.6-6
The bounce from google says:
The mail system
<cubiebo...@googlegroups.com>: host
gmr-smtp-in.l.google.com[2607:f8b0:4001:c08::e] said: 550-5.7.1
[2607:f4b8:3:3:67:15ff:fe00:180] 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. f9si145249igt.0 - gsmtp (in reply to end of DATA
command)
Reporting-MTA: dns; z9m9z.htt-consult.com
X-Postfix-Queue-ID: 6FC565FA07
X-Postfix-Sender: rfc822;r...@htt-consult.com
Arrival-Date: Wed, 19 Nov 2014 08:48:16 -0500 (EST)
Final-Recipient: rfc822;cubiebo...@googlegroups.com
Original-Recipient:rfc822;cubiebo...@googlegroups.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; gmr-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.1 [2607:f4b8:3:3:67:15ff:fe00:180] 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. f9si145249igt.0 - gsmtp
I checked via my Verizon wireless MiFi connection and that IPv6 address
ptr does point to z9m9z.htt-consult.com I have gone to the listed web
page, and believe my ipv6 dns is correct. I have not implemented spf or
dkim. I am now getting TLS connections between my MTA and others.
Could it be some other problem with my postfix setup? Or DNS?
