GFI announced the availability of a new anti-spam defense option for MailEssentials in the fresh update of the platform. The new release features implementation of multiple antivirus engines for keeping at bay spam messages and malicious software funneled into small and mid-sized businesses (SMB) via email, through the addition of the Avira solution, which replaces Norman antivirus. By default, GFI MailEssentials relies on antivirus products from Bitdefender and ThreatTrack VIPRE to detect a…