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Block outgoing spam mails via body or other features

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http://forums.cpanel.net – Hello; An account at our host sends spam permanently. There is a block system via time like a user can send 100 mail in an hour. So this spam spents sending rights in a hour and the real users cannot send because of the block system. How can i block this outgoing spam mails? (HowTos)

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Submitted by missing on 07/21/2012 – Made popular on 07/21/2012

Stories similar to Block outgoing spam mails via body or other features

Is there any particular reason why I should not perform SPF checks for outgoing mails?

I was reading on some articles that "you should not perform SPF checks for outgoing mails", why?

I'm doing SPF checks for incoming mails and it saves me from lot of spam, but sometimes I get some spam sent from my shared hosting servers, could be outgoing SPF checks valid to block some spam?

Hello,

How to tune the mail server to block the incoming spam, currently we are using

cPanel/WHM 11.32.3 (build 21) OS : CENTOS 6.2 x86_64 standard CSF firewall ClamAV AntiVirus

we do use SpamAssassin To fight against spam mails but still receiving uncountable spam mails

any solutions to this ?

I am looking for a smtp proxy to install on our gateway which should monitor outgoing smtp traffic to identify the source of recently occuring spam attacks from our network.

It would be enough if this could log all outgoing mails, no actual filtering must be done as I'm going to do this manually.

Also, is it possible to monitor smtps ports 465 and 587 or is it necessary to completely block these

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