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Path: utzoo!watmath!clyde!akgua!mcnc!decvax!harpo!seismo!rlgvax!cvl!umcp-cs!chris
From: chris@umcp-cs.UUCP
Newsgroups: net.mail
Subject: Re: Need help with internet address
Message-ID: <6703@umcp-cs.UUCP>
Date: Sun, 22-Apr-84 18:36:17 EST
Article-I.D.: umcp-cs.6703
Posted: Sun Apr 22 18:36:17 1984
Date-Received: Mon, 23-Apr-84 07:21:41 EST
References: <593@pyuxhh.UUCP>
Organization: Univ. of Maryland, Computer Science Dept.
Lines: 12

The problem with such addresses is that you never know when some
intermediate site will decide to use the ARPA part of the address.
In your example (ihnp4!ucbvax!n%h@s), if ihnp4 gives @-signs "higher
priority" than !s, they will try to send it to {{ucbvax!n%h} at
s}, rather than {ucbvax ! {n%h@s}}.

I don't know what sendmail does with such addresses (I imagine it
depends on the configuration file).
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci (301) 454-7690
UUCP:	{seismo,allegra,brl-bmd}!umcp-cs!chris
CSNet:	chris@umcp-cs		ARPA:	chris@maryland