smtp-vilter has been installed as /usr/local/sbin/smtp-vilter.
See smtp-vilter(8) for instructions on how to register the milter.

To start the milter automatically on startup, one can use:

/etc/rc.conf.local
  smtp_vilter_flags=""

/etc/rc.local
  if [ X"${smtp_vilter_flags}" != X"NO" -a \
      -x /usr/local/sbin/smtp-vilter ]; then
          echo -n ' smtp-vilter'
          /usr/local/sbin/smtp-vilter
  fi
