antivirus integration ?

Can we integrate antivirus program to check incoming mails ?
which program works with the client?

ESET works fine with EMC,  scan in and outgoing mail


just make a test. ESET dont found virus in rar, but when try to extract. 

Most anti-virus applications are able to scan incoming messages irrespective of which email client you are using. There is no need to re-develop the email client to do something that is already being done by a specialist application.