Spam Problem

[visaodigital2]

I just finished the migration of 61 website´s from Plesk 7.5.2 to 7.5.4 and i add the Power Pack (Spam Assassin, etc).
All the mail accounts are receiving a lot of spam a virus.

What can i do to solve this problem?

Thank you

LS

 

[phoenixisp]

Please use the search feature, there have been countless threads on fighting spam.