Check several email accounts on my server with mail-tester.com and it comes back as 9/10 which is great. But I'm still not getting gmail emails to my on server email accounts.
I have gotten a few of these emails from my mail system. Could this be an issue? I have no problems sending emails to gmail from normal email accounts on the server..
The error below is what happens when my server mail system sends out server warnings to my gmail account:
<xxxx@xxxxx.com> (expanded from <root>): host
aspmx.l.google.com[2607:f8b0:4023:1006::1a] said: 550-5.7.1
[2602:ff16:11:0:1:50:0:1] Our system has detected that this message
550-5.7.1 does not meet IPv6 sending guidelines regarding PTR records and
550-5.7.1 authentication. Please review 550-5.7.1
https://support.google.com/mail/?p=IPv6AuthError for more information 550
5.7.1 . a40-20020a056870d62800b00132ce490941si917871oaq.181 - gsmtp (in
reply to end of DATA command)