jaso...@mail-central.com:
> All that's involved here is postscreen, its handoff smtp, and the
> address verification step against the backend. How am I supposed
> to get this simpler without removing postscreen or the address
> verification step or the backend?
Sorry, reality is different.
I mentioned that address probes follow the same path as real email
(absent address_verify_mumble overrides or content filters).
This is what happens in the simple case.
1) smtpd talks to the cleanup server.
2) cleanup writes a probe message to the queue.
3) qmgr selects a delivery agent.
4) The delivery agent does a partial delivery attempt and reports
results to the verify daemon.
5) The verify daemon updates the verify database.
6) smtpd retrieves the result from the verify database.
It gets more complicated with external content filters. In that
case, step 1) effectively talks to the after-filter cleanup server.
If you configured your virtual aliasing *before* the content filter,
then the probe message will miss that. In other words you would
need to expand aliases after the content filter.
Wietse
