I am having problems with lots of spam on my server and want to know how I can stop it or what software I should install to stop it.
It's a cPanel/WHM Linux Server, with Centos 5.4 on it.
We have Spam Assassin turned on, but still not really helping.
Clients have been in touch saying that they are getting Trojans to their email as attachments, and other things, and lots of Viagra emails.
Any ideas on how to cut back on this? What server software etc?