• Source: Mark Crispin

Mark Reed Crispin (July 19, 1956 in Camden, New Jersey – December 28, 2012 in Poulsbo, Washington) is best known as the father of the Internet Message Access Protocol (IMAP), having invented it in 1985 during his time at the Stanford Knowledge Systems Laboratory. He is the author or co-author of numerous RFCs and was the principal author of UW IMAP, one of the reference implementations of the IMAP4rev1 protocol described in RFC 3501. He also designed the MIX mail storage format.
Crispin earned a B.S. in Technology and Society from Stevens Institute of Technology in 1977.




Career


From 1977 to 1988, he was a Systems Programmer at Stanford University. He developed the first production PDP-10 96-bit leader ARPANET Network Control Program (NCP) for the WAITS operating system, and wrote or rewrote most of the WAITS ARPAnet protocol suite. Prior to that time most systems only supported the original 32-bit leader. 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.
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. He became the principal developer of the TOPS-20 mailsystem, and reportedly was still running TOPS-20 systems at his residence in 2009. It was at Stanford, in the 1985–88 period, that IMAP was first developed.
From 1988 to 2008, he was a Software Engineer at the University of Washington, where much of the work in developing and popularizing IMAP and building what became UW IMAP was done. He forked UW IMAP into Panda IMAP in May 2008.
While working at UW, Mark was one of the creators of the simple and portable Unix email program Pine, launched in March 1992.
In 2005, he wrote RFC 4042, his second April Fools' Day RFC describing UTF-9 and UTF-18, encodings of Unicode optimized for the PDP-10.
In August 2008, Crispin joined Messaging Architects as a Senior Software Engineer. At Messaging Architects, he wrote an entirely new IMAP server based upon a distributed mail store, and extended the MIX format to support stubbing (via a mechanism called virtual mailboxes) and metadata.




Death


On 19 November 2012, it was announced that Crispin was terminally ill and in hospice care, and he died on December 28, 2012.
In April 2013, Crispin was posthumously awarded the Distinguished Alumni Award in Science and Technology by his alma mater, Stevens Institute of Technology.




See also


List of programmers




References






External links


Mark Crispin (personal home World Wide Web page), Panda, archived from the original on 2006-09-11.

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