On Mon, Feb 09, 2026 at 09:14:41AM -0500, Wietse Venema via Postfix-users wrote:
> Michael Grimm via Postfix-users:
> > /^(.*)@ellael\.lan$/ ${1}@ellael.lan ${1}@dbmail.ellael.lan
>
> That will accept mail for non-existent recipientrs, and hopefully
> gets you denylisted as a backscatterer.
Actually, no, because the "allael.lan" domain is I think a purely
internal fiction (I use "virtual.invalid" for this).
This domain would not be listed in any of the address classes,
and would be rejected for external senders by
"reject_unauth_destination".
It would have transport table entries, but these don't imply
access permissions:
ellael.lan lmtp:...
dbmail.ellael.lan lmtp:...
So the OP's proposed approach works fine.
--
Viktor. 🇺🇦 Слава Україні!
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