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From: diamant@hpfclp.UUCP
Newsgroups: comp.mail.misc
Subject: Re: Info on IDA Sendmail kit / pathalias
Message-ID: <8120010@hpfclp.HP.COM>
Date: Sat, 26-Sep-87 23:59:31 EDT
Article-I.D.: hpfclp.8120010
Posted: Sat Sep 26 23:59:31 1987
Date-Received: Tue, 29-Sep-87 02:55:38 EDT
References: <117@rdlvax.RDL.COM>
Organization: HP, Fort Collins, CO
Lines: 33

> In the referenced article, diamant@hpfclp.HP.COM (John Diamant) writes:
> 
> 	try to use the domain server first,
> 	and only use pathalias if that fails.
> 
> The call to search the pathalias
> generated database had better not be in a sendmail mailer definition,
> where I've already committed to delivering by something other than
> SMTP. It has to be somewhere in the address canonicalization routines,
> which requires hacking on sendmail.
> 
> 	Erik E. Fair	ucbvax!fair	fair@ucbarpa.berkeley.edu

This is a good point.  However, in the HP version of sendmail, this doesn't
require a change to the source.  The reason is that our version allows you
to invoke an external program just like a ruleset, using "<" instead of ">."
For example, here is a rule that calls pathalias ($P is set to the pathalias
binary) on UUCP syntax addresses:

DP/usr/bin/uupath
R$+<@$-.UUX>		$:$<P$2!$1		pathalias routing

I believe that this is an HP-only enhancement at this time, but I could
be mistaken.  At any rate, with that, it is trivial to add a call to
pathalias in ruleset 0 if that is what you want.  I would say you should only
do that on "!" paths, though, to allow the MX records to take precedence
when available on domain addresses.


John Diamant
TSBU				UUCP:  {hplabs,hpfcla}!hpfclp!diamant
Hewlett Packard Co.		ARPA Internet: diamant%hpfclp@hplabs.HP.COM
Fort Collins, CO