[ILUG] funney emails (Not haha funny)

[jason corcoran]

I am getting a flood of emails with the following body text

   Dear Jcorcoran Member,
   We have temporarily suspended your email account ted at jcorcoran.net.
   This might be due to either of the following reasons:
   1. A recent change in your personal information (i.e. change of address).
   2. Submiting invalid information during the initial sign up process.
   3. An innability to accurately verify your selected option of subscription
   due to an internal error within our processors.
   See the details to reactivate your Jcorcoran account.
   Sincerely,The Jcorcoran Support Team
   +++ Attachment: No Virus (Clean)
   +++ Jcorcoran Antivirus - www.jcorcoran.net

The mails have a scr attachement.

So I think it is time to add an antivirus step to my mail system. What is the easist and most up to date definitions for a Postfix + spamassassin with procmail type mail server?
Running on a Clarkconnect (so I suppose Fedora) platform.

Thanks
Jason.