Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!sdd.hp.com!ucsd!usc!srhqla!nrcvax!kosman!kevin
From: kevin@kosman.UUCP (Kevin O'Gorman)
Newsgroups: comp.mail.mush
Subject: Getting a bad hostname for smart UUCP system
Message-ID: <1179@kosman.UUCP>
Date: 31 May 90 05:35:48 GMT
Organization: K.O.'s Manor - Vital Computer Systems, Oxnard, CA 93035
Lines: 27

I've been running fine in most respects since I first installed mush
a year ago or so.  However, when I started accessing a certain mail
server, one of the intermediate sites started to complain.

We tracked it down.  I have a SYSV UUCP-only system with enough other
software that I'm happy with domain addresses.  In this case, MUSH
wants to believe that the correct From: line for my system is my login
name, an '@', and the results of uname(2).  This gives me the bogus
header
	From: kevin@kosman
This is bogus because any address with an '@' must have a domain, and
some internet mailers, on seeing such a thing, assume it's local and
add their own domain.  This happened, and something very awkward
happened after the messages got to the server: the server believed
what it saw.

Anyway, it seems to me there could be something in config.h to indicate
this sort of case, or at least some documentation to help folks like
me avoid annoying the neighbors.  What I did was add a line to .mushrc:
	set hostname=${hostname}.uucp	# give it a fake domain
and it looks like it's working.  It avoids confusing most sendmail
configurations, and does the right thing in a lot of other cases,
even though .uucp is not strictly speaking a domain.
-- 
Kevin O'Gorman ( kevin@kosman.UUCP, kevin%kosman.uucp@nrc.com )
voice: 805-984-8042 Vital Computer Systems, 5115 Beachcomber, Oxnard, CA  93035
Non-Disclaimer: my boss is me, and he stands behind everything I say.