SMTPD II

    Patterns in src, from

        ALL

        KNOWN|UNKNOWN

        NS=

        USER - in from - match in identd

    Examples

        deny:UNKNOWN:AL::ALL

        deny:*.spamhaus.com *.junkmail.com:ALL:ALL

        noto:ALL:ALL:*%*@*:551 Sorry %H (%I), I don't allow relaying to %T

        noto:RBL.rbl.maps.vix.com:ALL:ALL:550 Mail from %I in MAPS RBL being blocked, see http%C//maps.vix.com/rbl/

    Reference

        man smtpd, smtpfwdd

        Commented examples in /usr/share/smtpd