Ipv6 ptr problem

[emanuelhut]

Hi,

The last few days some users are having problems with Qmail and ipv6 ptr.

They are getting this mail when a mail isn't send correctly:

gmail-smtp-in.l.google.com[2a00:1450:4008:c01::1b]
   said: 550-5.7.1 [2a01:238:43d7:c400::face:b00c      16] Our system has
   detected that 550-5.7.1 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. u7si399907bkh.84 - gsmtp (in reply to end of DATA
   command)
Reporting-MTA: dns; limwand.nl
X-Postfix-Queue-ID: 5575D1601065
X-Postfix-Sender: rfc822; ******@limwand.nl
Arrival-Date: Wed, 18 Sep 2013 11:11:53 +0200 (CEST)

Final-Recipient: rfc822; ******@gmail.com
Original-Recipient: rfc822;******@gmail.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.1 [2a01:238:43d7:c400::face:b00c      16] Our
   system has detected that 550-5.7.1 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. u7si399907bkh.84 - gsmtp

The problems are only occuring when the user sends a mail to Outlook or Gmail.

Can somebody help me with this?

thanks!

 

[abdi]

The link that Google provides explains it very well. You should go through the list of requirements that Google lists there and check if you satisfy each of them, if not then fix that.