Apologies again for contacting the list when I hadn't exhausted my own
tests. Thing was, when I sent the first message, I was completely at
a loss.
Paul Gardiner wrote:
Feb 5 15:12:34 glidos postfix/smtpd[15222]: connect from localhost[::1]
Feb 5 15:12:34 glidos postfix/smtpd[15222]: NOQUEUE: reject: RCPT from
localhost[::1]: 554 5.7.1 <p...@localhost>: Recipient address rejected:
Access denied; from=<nore...@host.domain> to=<p...@localhost> proto=SMTP
helo=<glidos.site>
Feb 5 15:12:34 glidos postfix/smtpd[15222]: lost connection after RCPT
from localhost[::1]
Feb 5 15:12:34 glidos postfix/smtpd[15222]: disconnect from localhost[::1]
I think I might be close to finding the cause. If I do the same test on
my old working system, there is no rejection and the "RCPT from" message
shows localhost[127.0.0.1] in place of localhost[::1]. My master.cf
entry for the after-filter smtp server has mynetworks=127.0.0.0/8. I
don't know enough about postfix to work out what effect that would
have and exactly what I should change, but that's looking like it
could be related to the problem.
Has postfix just recently been updated to use IPv6 when present?
Cheers,
Paul.