Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site wu1.UUCP Path: utzoo!watmath!clyde!floyd!cmcl2!rocky2!cubsvax!wu1!rf From: rf@wu1.UUCP Newsgroups: net.mail.headers Subject: Re: SMTP and authentication Message-ID: <259@wu1.UUCP> Date: Fri, 9-Mar-84 13:11:01 EST Article-I.D.: wu1.259 Posted: Fri Mar 9 13:11:01 1984 Date-Received: Sun, 11-Mar-84 00:25:59 EST References: <384@hou3c.UUCP> Organization: Western Union Telegraph, Mahwah, NJ Lines: 20 John (RSX-DEV@DEC-MARLBORO.ARPA) writes: A TWX or Telex can be hacked just as easily as netmail! All it takes is changing the answerback. Nonsense! Both Telex I and Telex II (TWX) are connected to the Western Union switches via dedicated lines. When you dial a terminal through the Telex net, you may request its answerback code, thereby assuring that the message went to a terminal with the appropriate answerback connected to the appropriate ports on the Telex net. To forge a Telex one must either change the terminal address in the Western Union switches (which takes about a week) or physically fiddle with the telephone lines which connect Telex terminals. This is far more difficult than forging a Uucpnet message. Randolph Fritz Western Union Telegraph {philabs, allegra!sunrise}!wu1!rf