Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.csd.uwm.edu!cs.utexas.edu!fletcher
From: fletcher@cs.utexas.edu (Fletcher Mattox)
Newsgroups: comp.mail.sendmail
Subject: error handling on mail lists
Message-ID: <6872@cs.utexas.edu>
Date: 9 Sep 89 21:13:12 GMT
Organization: U. Texas CS Dept., Austin, Texas
Lines: 23

Unless I'm mis-reading the code, it looks to me like the
"owner-" error hack doesn't work when mail to a list of
all local users arrives via SMTP and one of those users 
doesn't exist.

An example:

/usr/lib/aliases on somehost.edu looks like:

# blurfl doesn't exit, joe and bob do.
foolist: joe,blurfl,bob		
foolist-owner: postmaster

Someone on otherhost.edu mails to <foolist@somehost.edu>, he
gets back a "550 foolist: User unknown", but foolist-owner
is not notified of the error nor is mail delivered to joe
and bob.  This is in contrast to what happens when the same
mail originates on somehost.edu.

At least this is the behaviour I see with a heavily hacked 5.59.  
I'd like to hear someone else confirm it before I try to fix it.

Fletcher