On Tue, Feb 18, 2025 at 12:18:08PM -0500, John Griffiths via Postfix-users
wrote:
> I am getting soft bounces even with soft_bounce = no set in main.cf.
>
> Feb 18 02:03:17 joe postfix/smtpd[601395]: NOQUEUE: reject: RCPT
> from inbound2b.ore.mailhop.org[54.68.193.51]:
> 450 4.1.8 <linri...@comcast.net>: Sender address rejected: Domain
> not found; from=<linri...@comcast.net> to=<
> john.griffith...@floridasunre.com> proto=ESMTP
> helo=<inbound2b.ore.mailhop.org>
> Feb 18 02:09:05 joe postfix/smtpd[602144]: NOQUEUE: reject: RCPT
> from inbound4b.ore.mailhop.org[54.149.154.28]
> :450 4.1.8 <news-stuff.smg01=grifent....@xgnix.com>: Sender address
> rejected: Domain not found; from=<news-st
That's not a "soft bounce". But it could easily be a different part of
the default safety net, that should be updated after initial tests.
$ postconf -d | grep -P '_reject_code = 4\d\d$'
plaintext_reject_code = 450
unknown_address_reject_code = 450
unknown_client_reject_code = 450
unknown_hostname_reject_code = 450
unverified_recipient_reject_code = 450
unverified_sender_reject_code = 450
In main.cf, I have:
# postconf -n | grep -P '_reject_code = \d\d\d$'
plaintext_reject_code = 550
unknown_address_reject_code = 550
unknown_client_reject_code = 550
unknown_hostname_reject_code = 550
unverified_recipient_reject_code = 550
unverified_sender_reject_code = 550
--
Viktor.
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