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reject sender with a different domain of mine

From: David Brachet (david.brachetgmail.com)
Date: Thu Aug 02 2007 - 06:21:32 CDT


Hi all,

I have a problem: everybody can send a mail from my local network. For
example, my domain is my_domain.com, and i can send a mail if my mail
address is toto.fr. I would like that a user on my local network can send a
mail only if his mail address is totomy_domain.com, and for totototo.fr,
the user must authenticate for example.

What is the rule i must add? I try several, but no result. Thanks