Article View: comp.security.misc
Article #372Re: Fake headers on Internet mail
From: Craig Richmond - division
Date: Fri, 14 Aug 1992 09:22
Date: Fri, 14 Aug 1992 09:22
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Barrett_Jim@ial3.jsc.nasa.gov (Jim Barrett) writes:
>I have observed that some mailer daemons are able to detect certain fraudulent
>transcations, and while accepting the "From:" information in the incoming
>message, will also include an "Apparently-From:" line in the message header.
>Most mailers that I have played with believe the "From:" information fed to
>them without a murmur of doubt.
The Apparently To: field is generated if you fail to put a Mail header in
the mail body and it has to be salvaged from the envelope information.
Similarly the Apparently From: field is probably placed in the mail if the
envelope information must be used to generate it and can probably be
circumvented by including the information in the Body of the message as
well as the SMTP envelope information.
Craig
--
Craig Richmond. Computer Officer - Dept of Economics (morning) 380 3860
University of Western Australia Dept of Education (afternoon)
craig@ecel.uwa.edu.au Dvorak Keyboards RULE!
"Only users are allowed to make messes on their computers" I.M.VI
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Newsgroups: comp.security.misc Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!uniwa!craig From: craig@ec.uwa.oz.au (Craig Richmond - division) Subject: Re: Fake headers on Internet mail Message-ID: <1992Aug14.092259.10647@uniwa.uwa.edu.au> Sender: news@uniwa.uwa.edu.au (USENET News System) Nntp-Posting-Host: decel.ecel.uwa.edu.au Organization: University of Western Australia References: <1992Aug12.151404.1424@lub001.lamar.edu> <1992Aug13.164814.11389@aio.jsc.nasa.gov> Date: Fri, 14 Aug 1992 09:22:59 GMT Lines: 21