‘ClamSMTP",
ClamSMTP is an SMTP filter that allows you to check for viruses using the ClamAV anti-virus software.
(snip)
ClamSMTP aims to be lightweight, reliable, and simple rather than have a myriad of options. It's written in C without major dependencies.
某ドメインではamavisd-newが問題なく動いているけど，いちおうメモ…