[
{ type: install
  message: <<EOM
In order to run this port, write your opendkim.conf and:

if you use sendmail, add the milter socket `socketspec' in
/etc/mail/<your_configuration>.mc:

INPUT_MAIL_FILTER(`dkim-filter', `S=_YOUR_SOCKET_SPEC_, F=T, T=R:2m')

or if you use postfix write your milter socket `socketspec' in
%%PREFIX%%/etc/postfix/main.cf:

smtpd_milters = _YOUR_SOCKET_SPEC_


And to run the milter from startup, add milteropendkim_enable="YES" in
your /etc/rc.conf.
Extra options can be found in startup script.

Note: milter sockets must be accessible from postfix/smtpd;
  using inet sockets might be preferred.
EOM
}
]