From owner-freebsd-questions  Wed Feb 14 08:48:06 1996
Return-Path: owner-questions
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.3/8.7.3) id IAA28832
          for questions-outgoing; Wed, 14 Feb 1996 08:48:06 -0800 (PST)
Received: from mail.opensol.com.ar (mail.opensol.com.ar [200.26.38.142])
          by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id IAA28807
          for <questions@freebsd.org>; Wed, 14 Feb 1996 08:47:59 -0800 (PST)
Received: (from chx0@localhost) by mail.opensol.com.ar (8.6.12/8.6.12) id KAA05526; Wed, 14 Feb 1996 10:56:11 -0300
From: CHX0 <chx0@mail.opensol.com.ar>
Message-Id: <199602141356.KAA05526@mail.opensol.com.ar>
Subject: Re: mail "loop back to myself"
To: dwhite@resnet.uoregon.edu
Date: Wed, 14 Feb 1996 10:56:11 -0300 (ARG)
Cc: ipc1@tribeca.ios.com, questions@freebsd.org
In-Reply-To: <Pine.BSF.3.91.960213133643.2089H-100000@gdi.uoregon.edu> from "Doug White" at Feb 13, 96 01:38:01 pm
X-Mailer: ELM [version 2.4 PL24]
Content-Type: text
Sender: owner-questions@freebsd.org
Precedence: bulk

> 
> On Tue, 13 Feb 1996, Dale Benzer wrote:
> 
> > What are we doing wrong here???!!!  Mail from the net is received but 
> > returned by our server to the sender with this loops back on myself message.
> 
> Add your system's name to /etc/sendmail.cf under the Cw line.

Not only your system name, but the names of all domains you're intended to
handle mail for. So if you were an MX for uoregon.edu, you should add
uoregon.edu to the w class.

> 
> This is mine:  (the machine's real DNS name is riley-, it's CNAMEd to gdi):
> 
> Cwlocalhost gdi.uoregon.edu riley-net170-164.uoregon.edu
> 
> Doug White                              | University of Oregon  
> Internet:  dwhite@gladstone.uoregon.edu | Residence Networking Assistant
> http://gladstone.uoregon.edu/~dwhite    | Computer Science Major
> 
> 
Mario