Xref: utzoo comp.mail.sendmail:103 comp.dcom.lans:1848
Path: utzoo!utgpu!attcan!uunet!ncrlnk!ncr-sd!hp-sdd!ucsdhub!ucsd!ames!killer!wisner
From: wisner@killer.DALLAS.TX.US (Bill Wisner)
Newsgroups: comp.mail.sendmail,comp.dcom.lans
Subject: Re: sendmail, the resolver and /etc/hosts
Message-ID: <5589@killer.DALLAS.TX.US>
Date: 22 Sep 88 01:55:13 GMT
References: <713@ncar.ucar.edu> <1469@valhalla.ee.rochester.edu>  <1473@valhalla.ee.rochester.edu> <285@hal.UUCP> <893@noao.UUCP>
Reply-To: wisner@killer.Dallas.TX.US (Bill Wisner)
Organization: HASA
Lines: 13

>>Try mailing to ane@[129.22.144.1]
>>rather than ane@hal.cwru.edu.  It should work either way.

>About half the time when we try such a mail address, we get back an error
>from the other machine's sendmail saying "I refuse to talk to myself" and
>the user's mail drops on the floor one more time!  

Quite common. The sendmail.cf used at MIT LCS takes care of this by 
defining class I as a list of all valid IP addresses for the site.
One of the rulesets rewrites user@[xx.xx.xx.xx] into user@LOCAL
and everything's peachy.

Bill Wisner	wisner@killer.dallas.tx.us	killer!wisner