You can grab a tarball of the 0.37.0 port from http://yds.dppl.com/courier/
and you'll have a working, menu driven build environment that will link
authdaemond.ldap with your choice of OpenLDAP1 or OpenLDAP2. Which servers
actually get started is controlled through Courier's regular config files.
My port also deals with the missing OpenSSL c_rehash script by including a
copy with the port since it's only needed at build time. Perhaps the
OpenBSD port can employ a similar technique.
Jan. 22 is the FreeBSD 4.5-RELEASE ports tree freeze deadline. So chances
are good that this Courier-MTA port will get onto the CDs this release
cycle. I'm looking for feedback so I can fix anything that needs be fixed
before the deadline.