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Internet Message Access Protocol (IMAP)

Definitions:

  A mailbox access protocol defined by IETF RFC 3501. IMAP is one of the most commonly used mailbox access protocols. IMAP offers a much wider command set than POP.
Sources:
NIST SP 800-45 Version 2

  a method of communication used to read electronic mail stored in a remote server.
Sources:
NIST SP 1800-16B under Internet Message Access Protocol from NISTIR 7387
NIST SP 1800-16C under Internet Message Access Protocol from NISTIR 7387
NIST SP 1800-16D under Internet Message Access Protocol from NISTIR 7387
NISTIR 7387 under Internet Message Access Protocol

  A method of communication used to read electronic messages stored in a remote server.
Sources:
NIST SP 800-101 Rev. 1
NISTIR 7250 under Internet Message Access Protocol