In order to build MailManager, you need the IMAP toolkit at the same
level of the directory tree as the MailManager directory.  You can get
a copy of the IMAP toolkit from Internet site FTP.CAC.Washington.EDU
using anonymous FTP.  The pathname is mail/imap.tar.Z

Here is what a build might look like after retrieving
MailManager.tar.Z and imap.tar.Z:
	% zcat MailManager.tar.Z | tar xf -
	% zcat imap.tar.Z | tar xf -
	% cd imap-*
	% make nxt
	% cd ../MailManager
	% make
