=========================================================================== $NetBSD: MESSAGE,v 1.2 2004/08/03 08:23:06 jlam Exp $ In order to use with postfix, a possible configuration using clamsmtpd as an after-queue content filter would be: [main.cf] content_filter = scan:localhost:10025 receive_override_options = no_address_mappings [master.cf] # AV scan filter (used by content_filter) scan unix - - n - 16 smtp -o smtp_send_xforward_command=yes # For injecting mail back into postfix from the filter localhost:10026 inet n - n - 16 smtpd -o content_filter= -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks -o smtpd_helo_restrictions= -o smtpd_client_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks_style=host -o smtpd_authorized_xforward_hosts=127.0.0.0/8 That's all! please visit the following links for more information on this setup: ${HOMEPAGE}postfix.html http://www.postfix.org/FILTER_README.html ===========================================================================