[Mimedefang] Testing for port #/TLS in filter_relay

[Philip Prindeville]

David F. Skoll wrote:
> > If I send a patch to do it this way, what's the chance of it being 
> accepted?
>
> Very low, unless a few other people on the list want the feature badly
> enough to ask for it.  I honestly don't think the changes are worth
> it; you can do everything you need at the MAIL FROM stage.

By the time that MAIL FROM: is seen, fork()'s have happened, etc. and 
it's a bit late to avoid the overhead that could be otherwise be avoided 
by balking at the connection early on.

-Philip