My recommendation is to use the qmail-scanner/clamav solution rather than this virus patch. Netqmail already comes with the qmailqueue patch, which is required for qmail-scanner to work. And clamav already had MyDoom added to its virus definitions before MyDoom had a name (that's why they called it WORM.SCO.A (meaning the clamav guys are very much on the ball). Since using this solution, I have not had a complaint of a single virus getting through.
And I highly recommend Qscanq, <http://budney.homeunix.net:8080/users/budney/software/qscanq/>, as a replacement for qmail-scanner. It's a C-based program that replaces qmail-queue and does virus scanning on inbound messages. If a message contains a virus, it's denied by qmail-smtpd. No bounces to forged senders, no virus warnings to annoy the recipient, no bounces for non-existent recipients, no spam scanning of viruses, no Perl overhead of qmail-scanner.
I use it in conjunction with qmail-spamc (in SpamAssassin's qmail directory) to scan all incoming messages for viruses and spam without invoking Perl. At some point, I will probably replace qmail-spamc with Ken Jones' patch for vpopmail that adds SpamAssassin scanning to vdelivermail.
-- Tom Collins - [EMAIL PROTECTED] QmailAdmin: http://qmailadmin.sf.net/ Vpopmail: http://vpopmail.sf.net/ Info on the Sniffter handheld Network Tester: http://sniffter.com/