Пользователи не получают писем с подтверждением регистрации, а на исходный е-майл (в зоне yandex.ru) приходят письма с ошибками:
This is the mail system at host srv741.local].
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<мыло-получателя@gmail.com>: host
gmail-smtp-in.l.google.com[2a00:1450:4010:c05::1b] said: 550-5.7.1
[2002:c302:fc40:0:215:17ff:fe3f:d5a0] 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
support.google.com/mail/?p=ipv6_authentication_error for more 550
5.7.1 information. pp9si14679341lbb.18 — gsmtp (in reply to end of DATA
command)
Статус доставки:
Reporting-MTA: dns; srv741.local
X-Postfix-Queue-ID: 5EBB82E4156E
X-Postfix-Sender: rfc822; мыло-отправителя@yandex.ru
Arrival-Date: Mon, 1 Feb 2016 11:54:31 +0300 (MSK)
Final-Recipient: rfc822; мыло-получателя@gmail.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.1 [2002:c302:fc40:0:215:17ff:fe3f:d5a0] 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
support.google.com/mail/?p=ipv6_authentication_error for more 550
5.7.1 information. pp9si14679341lbb.18 — gsmtp
