On 8/11/21 16:52, Wietse Venema wrote:
> If the sender address can override the routing, even if the recipient
> would otherwise be delivered locally, then that would be a recipe
> for mailer loops with the potential for mail explosions. This is
> why we have sender_dependent overrides for default transports and
> relay hosts, and avoid such stability problems.
Ah! Understood, indeed, the setup I've had to fall back to has some risk of routing loops, though with some care to
hopefully ensure it can't ever actually be hit. I guess the only solution is multi-key lookups, which would be nice, but
understood that its likely very nontrivial to add :).
On 8/11/21 16:49, post...@ptld.com wrote:
I might be off course, but wouldn't a milter cover those requirements?
I would love to find that it is, but its not my understanding that a milter can set the smtp nexthop without modifying
the mail itself.
Thanks,
Matt
