[exim] cant send to gmail after adding ipv6 address.

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Szerző: Ritah Mulinde
Dátum:  
Címzett: exim-users
Tárgy: [exim] cant send to gmail after adding ipv6 address.
Hello

Iam running exim-4.86.2 on my outbound server and it was working perfectly.

So i added an ipv6 address to the box just for experimental purposes and
this caused problems with sending to gmail.

Error i receive is :

*R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com
<http://gmail-smtp-in.l.google.com> [2a00:1450:400c:c07::1a]
X=TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128 CV=yes: SMTP error from remote
mail server after end of data: 550-5.7.1
[2001:43b8:0:1a:b09a:c533:6a97:be12] Our system has detected that
this\n550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR
records\n550-5.7.1 and authentication. Please review\n550-5.7.1
https://support.google.com/mail/?p=IPv6AuthError
<https://support.google.com/mail/?p=IPv6AuthError> for more
information\n550 5.7.1 . w67si7463719wma.127 - gsmtp"*

Since my ISP has not yet deployed ipv6 fully, i can not provide an ipv6
address with AAAA and PTR records set correctly

I have removed the address i added for experimental purposes, but issue
still persists.


Any pointers on how to get rid of this error??