Can I use Message Sniffer in other Email programs like QMail?
YES. The sniffer utility can be integrated into many other Email programs including QMail. Message Sniffer operates in very much the same way most command line virus scanners operate. For information about how to use external filter programs with QMail see:
qmail-scanner (Jason Haar): http://qmail-scanner.sourceforge.net/
QMAILQUEUE patch (Bruce Guenter): http://www.qmail.org/qmailqueue-patch