NAME

     filter-clamav — smtpd filter for Clam AntiVirus clamd

SYNOPSIS

     filter-clamav

DESCRIPTION

     filter-clamav is a filter for smtpd(8) which can be used to filter mails based on the
     decision from Clam AntiVirus's clamd(8) daemon.  Mails are piped to the daemon, which scans
     the mail for viruses.

     Mails which contain a virus are rejected with a SMTP 554 reply.  Non-virus mails are
     accepted.

CLAM ANTIVIRUS CONFIGURATION

     filter-clamav expects that Clam AntiVirus's clamd(1) to listen on 127.0.0.1 port 3310 for
     incoming requests.  This requires to uncomment the TCPAddr and TCPSocket option in the
     default configuration of the daemon.

SEE ALSO

     filter_api(3), smtpd.conf(5), smtpd(8), clamd(8)

HISTORY

     The first version of filter-clamav was written in 2015.

AUTHORS

     Joerg Jung <jung@openbsd.org>