The message sequence feature proved so popular with MM users that TOPS-20 MM author Mark Crispin went on to implement similar filtering capabilities in Pine.
IMAP was designed by Mark Crispin in 1986 as a remote mailbox protocol, in contrast to the widely used POP, a protocol for retrieving the contents of a mailbox.
In the early 1980s, shortly after becoming the Systems Programmer for the Stanford Computer Science Department's TOPS-20 system, he became interested in electronic mail software and systems; thereafter this became his primary focus.
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He developed the first production PDP-10 32-bit address ARPAnet NCP for the WAITS operating system, and wrote or rewrote most of the WAITS ARPAnet protocol suite.
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During that time, he wrote the infamous RFC 748, the only document specifically marked in the RFC index with note date of issue; and a series of Telnet implementations for the Incompatible Timesharing System, WAITS, and TOPS-20 operating systems whose escape behavior was playfully immortalized by Guy Steele in the April 1984 Communications of the ACM as The Telnet Song.
Mark Twain | Mark | Mark Wahlberg | Mark Knopfler | Mark Zuckerberg | Mark Rothko | Mark Antony | Mark the Evangelist | Gospel of Mark | Mark Ronson | Mark Spitz | Mark Foley | Crispin Glover | Mark Murphy (singer) | Mark Murphy | Mark McGwire | Mark Hamill | Deutsche Mark | Mark Taper Forum | Mark Millar | Mark Lewisohn | Mark Kermode | Mark Lanegan | Mark Waugh | Mark Rydell | Mark Goodson | Mark Owen | Mark Mothersbaugh | Mark Medoff | Mark Heard |