ClamSMTP doesn't start with rc.d script destributed with
the port whose version is 1.6_2.
Fix: Use following patch:
How-To-Repeat: Just install security/clamsmtp from ports,
set clamsmtp_enable="YES" to /etc/rc.conf,
and start clamsmtpd with /usr/local/etc/rc.d/clamsmtpd.sh start.
Over to maintainer
Committed. Thank You.