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From: tim_94 on 22 May 2007 13:26
On my mail server I have been having a problem stopping people who's
computer has been infected with a virus, sending spam through my
mailserver. What happens is that since they are connected to my
network they are allowed to send mail through the mail server by rule
of permit_mynetworks in the main.cf file of postfix, and the spam goes
through because the virus creates a port of some kind on there pc and
then sends the mail as if it was coming from their pc. Any ideas?
Please help, thanks!


Tim

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