IMAP for Electronic Mail on Athena Version 1 (September 2000, Heather Anne Harrison): Original document. Thanks to Nick Bozard, Phyllis Galt and the IMAP team.
Version 2 (February 2003, Heather Anne Harrison): Major update to inclue three more supported mail readers.
Version 3 (Fall 2004, Heather Anne Harrison): Major revamp to include minicourse info, screenshots, spamscreen, auto-responder, webmail and many more email services, updates and upgrades.
Version 4 (Summer 2005, Heather Anne Harrison): Evolution 2.0 update, includes link to web manuals, mail quota update, other minor tweaks.