Quoting Ali Majdzadeh <ali.majdza...@gmail.com>:
Stan, Hi Thanks for your detailed response. Actually, the main reason which drove us toward performing virus scanning as an offline process was performance. As we deal with large amounts of e-mails, we found the way amavisd-new or other filtering management tools performing filtering too slow. We intended to somehow decrease the amount of load which amavisd-new or similar tools impose on the architecture.
You can set up easily smtp cluster for email filtering and scanning. -- Eero
