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From: mcvoy@uwvax.UUCP
Newsgroups: comp.mail.uucp
Subject: Rewriting rules (folklore)
Message-ID: <3261@rsch.WISC.EDU>
Date: Mon, 23-Feb-87 16:18:05 EST
Article-I.D.: rsch.3261
Posted: Mon Feb 23 16:18:05 1987
Date-Received: Thu, 26-Feb-87 22:15:22 EST
Distribution: comp
Organization: U of Wisconsin CS Dept
Lines: 35

Hi-
    I've written some software that I'm about to farm out to a couple
of people that don't want to deal with sendmail/smail/uumail/whatever.
All it does is allow you to specify where domainified/unknown mail
should go for further rerouting, in other words it allows you to punt
mail to a smart site.

    Here's the problem and question:  the software has two forms

	route(addr) & rroute(addr)

Route understands !'s and @'s, rroute deals with those and %'s.  Rroute is
intended for use as help to rmail, route as help to mail[x].  The rules
I'm using are

    [R]route:
	1) If the address contains a bang(!), don't touch.
	2) If the address contains an @, try to rewrite.

    Rroute only:
	3) If 1 & 2 fail, and there is a %, change the rightmost % to an @.
    
Rroute is just a stub that applies rule three (if needed) and then passes 
the address to route.  The rule that is questionable is rule #3.  I need to
know if that is acceptable to most sites that pass mail.

The rewriting is done via a tempalte, so it's changeable on a per site basis,
but rule #3 is hard coded.

Please respond to the net.
-- 
Larry McVoy 	        mcvoy@rsch.wisc.edu, 
      		        {seismo, topaz, harvard, ihnp4, etc}!uwvax!mcvoy

"They're coming soon!  Quad-stated guru-gates!"