I'm running a postfix machine with courier on it. I did a lsof -i and I got the following
famd 1437 root 3u IPv4 3916 TCP localhost.localdomain:webster (LISTEN)
Does anybody know what's famd and webster? I dont recall seeing this before.
As far as the port goes, sometimes ports get used by different applications.
It uses a TCP socket to communicate with other programs that set watches on it, as well as remote machines that want to set up watches on NFS shares.