Postfix Milter support

[Reko Turja]

> I am trying to install OpenDKIM with filter support
> (/usr/ports/mail/opendkim) and Postfix. However, the later cannot be
> installed alongside Sendmail while OpenDKIM requires it... So how
> exactly do I get Postfix and OpenDKIM w/milter playing together?

Milters need parts of sendmail kept in the system (headers?), thus you need 
to keep sendmail in the system. Just dont add the:

WITHOUT_SENDMAIL

line into /etc/src.cnf. Or if you have it do a new build/installworld

Sadly sendmail doesn't have more finegrained configuration like BIND used to 
have.

-Reko