I've been trying to get MIMEDefang working on:

NetBSD access 1.5.2 NetBSD 1.5.2 (ACCESS) #1: Tue Jan 28 20:40:24 PST 2003     jnemeth@access:/usr/src/sys/arch/i386/compile/ACCESS i386

     First I tried to compile everything by hand.  After getting
nowhere with that, I tried using pkgsrc.  I used:

ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-current/tar_files/pkgsrc.tar.gz

which was dated Feb. 22nd.  All of my packages are up to date.
However, when mail attempts to come in, I get log entries like these:

Feb 24 03:14:02 access sm-mta[951]: NOQUEUE: connect from [66.118.159.193]
Feb 24 03:14:02 access sm-mta[951]: h1OBE2el000951: Milter (mimedefang): error connecting to filter: Connection refused by /var/spool/MIMEDefang/mimedefang.sock
Feb 24 03:14:02 access sm-mta[951]: h1OBE2el000951: Milter (mimedefang): to error state
Feb 24 03:14:02 access sm-mta[951]: h1OBE2el000951: Milter: initialization failed, temp failing commands
Feb 24 03:14:03 access sm-mta[951]: h1OBE2el000951: SMTP MAIL command (<ovwiixgraia@hotmail.com>) from [66.118.159.193] tempfailed (due to previous checks)

Does anybody have any idea what might be wrong?