Which EMAIL/SMTP/POP virus scanning...to use on 8.1

Hi All, Wanted to know what Virus scanning software to use on Suse 8.1, now that Trend does not have one. Please let me know .. I just migrated from 7.2 to 8.1 and we already have Trend with us for Linux (which does not work,on 8.1) and we need to have something up and running fast before things catch fire on the mail server. Vishal --