On Wed, Mar 27, 2024 at 10:41:08AM -0400, Wietse Venema via Postfix-users wrote:
> Viktor Dukhovni via Postfix-users:
> > On Tue, Mar 26, 2024 at 02:20:55PM -0400, Wietse Venema via Postfix-users
> > wrote:
> > > Viktor Dukhovni via Postfix-users:
> > > > That's fine, the SRV records can be keyed by destination domain.
> > >
> > > Locally-managed SRV records, keyed by the final destination domain
> > > name, to select a local relay host?
> >
> > Yes. The only tricky part is getting the queries to go to the right
> > zone, which requires appending a suffix to the nexthop domain.
>
> This is a very clever approach based on configuration data in DNS
> and Postfix. Would a routing policy help here? I'm thinking of a
> declarative interface (like postfwd for access policies).
Yes, that would be simpler, but the audience for this would likely be
narrow (the hopefully legitimate bulk mailers delivering mail for
hopefully legitimate customers), so if this is a lot of work, perhaps it
should be sponsored by a suitably motivated party.
> This may require a non-blocking client that supports multiple
> outstanding requests.
Yes.
--
Viktor.
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
