irofferTNG is a new, more active branch of the iroffer development. Totally independant from iroffer, it is a more general-purpose bot. It uses loadable modules as plugins, with security and stability on mind. It has support for XDCC-style commands, very good performance serving multiple files through DCC, and a lot of cool features like DCC partyline, MySQL support, etc.
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.