*BSD News Article 97410


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From: "jon" <abyss@cyberbeach.net>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Sendmail Question
Date: 9 Jun 1997 15:03:59 GMT
Organization: Bell Network Solutions
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I've got my unix box working no problem with multiple domains on the same
machine, but I have a question about fine tuning the configuration.

Is there any way to prevent people from 'impersonating' other domains on
the machine ? 

ie I've got username1@company1.com and username2@company2.com
Because my machine happilly responds to both domain names, nothing prevents
any of the users on the machine from adopting the domain name of any of the
domains the machine handles.

Is there any way to prevent this ?

TIA