John:
[ Charset windows-1252 converted... ]
>
> On 11/23/2014 9:50 AM, wie...@porcupine.org (Wietse Venema) wrote:
> > John:
> >> however, I had a similar problem a while back, Google would randomly
> >> reject email for, to me, no good reason.
> >> It turned out that with IPv6 postfix was not consistent in binding an
> >> address for sending.
> > Please do not spread unnecessary confusion.
> >
> > If you had read this tread more carefully, then you would see that
> > Google randomly rejects mail from the same site with correct PTR
> > configuration.
> >
> > Here it is again: same message, same sender, same recipient,
> > same SMTP client IP address, same SMTP server IP address.
> >
> > Nov 11 11:55:15 spike postfix/smtp[22958]: 3jcZv4004YzJrPw:
> > to=<censored>, relay=aspmx.l.google.com[2607:f8b0:400d:c04::1a]:25,
> > delay=3.6, delays=0.12/0.01/2.6/0.93, dsn=5.7.1, status=bounced
> > (host aspmx.l.google.com[2607:f8b0:400d:c04::1a] said: 550-5.7.1
> > [2604:8d00:189::2] Our system has detected that this message does
> > not 550-5.7.1 meet IPv6 sending guidelines regarding PTR records
> > and authentication 550-5.7.1 . Please review 550-5.7.1
> > https://support.google.com/mail/?p=ipv6_authentication_error for
> > more 550 5.7.1 information. l17si30149401qaj.81 - gsmtp (in reply
> > to end of DATA command))
> >
> > Nov 11 11:58:29 spike postfix/smtp[22980]: 3jcZyr2BpqzJrPw:
> > to=<censored>, relay=aspmx.l.google.com[2607:f8b0:400d:c04::1a]:25,
> > delay=1.4, delays=0.11/0.01/0.19/1.1, dsn=2.0.0, status=sent (250
> > 2.0.0 OK 1415725109 k30si37581932qge.88 - gsmtp)
> >
> > Wietse
> This EXACTLY what was happening to me.
No, it WAS NOT because your source IP addres changed and mine does not.
Can you see the difference?
Wietse
