POP3 AUTHentication command

Status of this Memo

  This document specifies an Internet standards track protocol for the
  Internet community, and requests discussion and suggestions for
  improvements.  Please refer to the current edition of the "Internet
  Official Protocol Standards" (STD 1) for the standardization state
  and status of this protocol.  Distribution of this memo is unlimited.


. Introduction

  This document describes the optional AUTH command, for indicating an
  authentication mechanism to the server, performing an authentication
  protocol exchange, and optionally negotiating a protection mechanism
  for subsequent protocol interactions.  The authentication and
  protection mechanisms used by the POP3 AUTH command are those used by
  IMAP4.

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