Homepage: http://j-chkmail.ensmp.fr/
Supports: libclamav, clamd
j-chkmail is a fast (written in C) filter for sendmail. It does spam and
dangerous content (virus) filtering with help of ClamAV. The program
supports many modes of monitoring and run time controlling and
was designed to work on highly loaded servers. It's an open source
software available for free to registered users (for non-commercial usage).