Monit can't restart Courier IMAP?

[Mike Jackson]

I apologize in advance if this is missing critical information; I'll do my 
best to be thorough.

I'm running Monit 4.5.1 on a FreeBSD 5.4-STABLE box. I'm using Courier-IMAP 
installed from FreeBSD's ports collection, stopping/starting it with the 
default /usr/local/etc/rc.d scripts that the port installs. Courier starts 
successfully when the system loads (in other words, all the correct entries 
are in /etc/rc.conf), and I can run the rc.d script from the command line to 
stop/start/restart the service. But when Monit attempt to stop/start it, it 
cannot. Here's an example from /var/log/messages:

Jul 25 11:27:48 bonsai monit[42687]: 'courier-imap' failed, cannot open a 
connection to INET[localhost:143]
Jul 25 11:27:48 bonsai monit[42687]: 'courier-imap' trying to restart
Jul 25 11:27:48 bonsai monit[42687]: 'courier-imap' stop: 
/usr/local/etc/rc.d/courier-imap-imapd.sh
Jul 25 11:29:53 bonsai monit[42687]: 'courier-imap' failed to stop

The rc.d script appears to be a normal FreeBSD rc.subr script, and other 
similar scripts play nicely with Monit. The file permissions (0755) and 
ownership (root:wheel) are the same as other rc.d scripts. Any ideas?