Path: utzoo!attcan!uunet!nih-csl!lhc!adm!cmcl2!yale!umich!samsung!know!zaphod.mps.ohio-state.edu!mips!smsc.sony.com!dce
From: dce@smsc.sony.com (David Elliott)
Newsgroups: comp.mail.sendmail
Subject: Re: $=m class
Message-ID: <1990Sep27.154352.14639@smsc.sony.com>
Date: 27 Sep 90 15:43:52 GMT
References: <9629@ur-cc.UUCP> <1990Sep26.220824.19155@mp.cs.niu.edu>
Sender: dce@smsc.sony.com (David Elliott)
Reply-To: dce@smsc.sony.com (David Elliott)
Organization: Strange Medium Guys With Bad Haircuts, Inc.
Lines: 33


In article <1990Sep26.220824.19155@mp.cs.niu.edu>, rickert@mp.cs.niu.edu (Neil Rickert) writes:
|> In article <9629@ur-cc.UUCP> Mark Sirota <msir@cc.rochester.edu> writes:
|> >According to the SunOS 4.1 System & Network Administration manual, page 746,
|> >the $=m class is a special class set to the domain name of this host.
|> >
|> >Well, pardon me if I'm wrong, but isn't the domain name a singular value?
|> >Shouldn't it therefore be a macro, not a class?  How is this class created,
|> 
|>   Since this seems to work on Sun's, I guess it is ok for it to be a class.
|> Presumably Sun has installed some special purpose code in their versions of
|> sendmail to handle this.  Normally a class can only match a single token,
|> so this must be specially handled.  In other words it does not work like a
|> normal class.

Actually, sendmail sets both $w and $=w.  This allows you to add
other mail domains that you are known by to the w class.

In the past, this has caused numerous problems with people who set
their YP domain to something other than their mail domain.  What
happened was that both class and variable w would be set to your
YP domain.  If, as the instructions instructed you, you set variable
w to your real mail domain, it didn't change class w, and this
caused problems in ruleset 6, which used class w.

I heard that Sun had changed something to fix this, but I don't recall
whether it was ruleset 6 or the way $w and $=w are handled.

--
...David Elliott
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...Krusty says: Give a hoot, read a book!