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Article #64

Quiz - Parse this From line

#64
From: dat
Date: Thu, 19 Dec 1985 00:17
24 lines
1474 bytes
Ken Stone of HP-SDD sent me his copy of my recent note and the return
address is the strangest I've seen yet on this network...

 >From noscvax!@MIT-MC.ARPA:hpfcla!hpcnoe!veeger!hpcnou!dat@hplabsd Tue Dec 17 13:35:41 1985

The question is - how does one parse this?  There are a LOT of
ambiguities here ... including two '@' addresses and such.  It
seems to me that a decent return address would be parsable in
a unique fashion, rather than this "if the destination machine is
an ARPA gateway then it'll send to (?) hplabsd, if not, then if
it's a BITNET gateway it'll send to MIT-MC.ARPA (through an ARPA
gateway?) else it'll just send it to noscvax and let THEM deal
with it...

Anyone have any pearls of wisdom about all this?

----- for further amusement, the modified From line too...(now wrong) ----

 From: noscvax!hpcnou!dat@hplabsd.ARPA (Dave Taylor)

-----

Are we having fun yet?
					-- Dave
Technical Details
Message-ID: <864@brl-tgr.ARPA>
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!whuxl!whuxlm!akgua!gatech!seismo!brl-tgr!tgr!hpcnou!dat@hplabs.ARPA

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!whuxl!whuxlm!akgua!gatech!seismo!brl-tgr!tgr!hpcnou!dat@hplabs.ARPA
From: dat@hplabs.ARPA
Newsgroups: net.mail.headers
Subject: Quiz - Parse this From line
Message-ID: <864@brl-tgr.ARPA>
Date: Wed, 18-Dec-85 19:17:00 EST
Article-I.D.: brl-tgr.864
Posted: Wed Dec 18 19:17:00 1985
Date-Received: Sat, 21-Dec-85 06:17:13 EST
Sender: news@brl-tgr.ARPA
Lines: 24