From: Neil W Rickert (rickert+nn@cs.niu.edu)                                   
Subject: Re: 553 Domain name required                                          
Newsgroups: comp.mail.sendmail                                                 
Date: 1999/12/30                                                               

Jim Turner <jimt@netins.net> writes:

>I am in need of some help.  This problem has plagued me
>before and I've never found an answer. 
>It seems to involve MH more than any other mailhandler, but
>it has happened in pine, elm, etc.  I get the above mentioned
>error (553 Domain name required).  Here's the setup. 
>Upgrading from 8.8.8 to 8.9.3.  Everything is going swimmingly
>(testing via telnetting directly to port 25 shows all is well).  Sending 
>from mh gives me this: 
>post: problem initializing server; [RPLY] 553 <jimt>... Domain name
>required
>send: message not delivered to anyone

I believe this is a problem with how you built MH.  Either that, or
you have a very old version.

As a work around, you might be able to set
        postproc: /usr/lib/mh/spost
in your '.mh_profile'.  Check the path, and whether 'spost' exists
before trying this.