Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!um-math!sharkey!itivax!itivax.iti.org!scs
From: scs@itivax.iti.org (Steve Simmons)
Newsgroups: comp.mail.sendmail
Subject: MX and Domain Wildcarding With IDA Sendmail?
Message-ID: <4160@itivax.iti.org>
Date: 10 Oct 89 17:11:14 GMT
Sender: scs@itivax.iti.org
Reply-To: scs@itivax.iti.org (Steve Simmons)
Organization: Industrial Technology Institute
Lines: 29


We're looking at issues of doing MX forwarding for some sites around
here, and someone came up with an interesting suggestion.  Here's the
deal.

Suppose we have a domain, mi.org.  Suppose we convince the NIC to
point *.mi.org at us.  Using IDA sendmail, we set up a bunch of
table entries that go:
  foo.mi.org -> foo, deliver via UUCP.
What would be nice is to have some pattern matching/substitution,
so that *.mi.org would always resolve to '*' (ie, stripping the 
mi.org) unless there was an explicit match (we have cases where
'foo.mi.org' has the uucpname 'bar').

Please don't write and tell me that sendmail rules can be made to
do this.  We know that.  We're using IDA because we hate the &^%^$#
sendmail.cf files, and IDA saves us from dealing with it.  IDA
docs make no reference to this sort of feature, and a quick grep of
the source didn't find regexp.

In a similar vein, we'd like to do geographic matching.  This would
let us map
	lokkur.dexter.mi.us	-> lokkur
	b-tech.ann-arbor.mi.us	-> b-tech
from a master like
	<host>.<anycity>.mi.us	-> host


In a similar