qmptombox converts QuickMail Pro files to mbox
files, ready for use by Mail.app or whatever your
preferred mbox reading mail client is. It's a
command line tool that churns out mboxes; just
point it at your CE Software folder (usually in
the OS9 system folder), and it will generate
mboxes corresponding to the mailboxes in QMP. The
default output is in Mail.app format.