Tuesday, May 8, 2007

POP3 Extension Mechanism

POP3 Extension Mechanism


The POP3 Extension Mechanism [RFC 2449] updates RFC 1939 to define a
mechanism to announce support for optional commands, extensions, and
unconditional server behavior. Included is an initial set of
currently deployed capabilities which vary between server
implementations, and several new capabilities (SASL, RESP-CODES,
LOGIN-DELAY, PIPELINING, EXPIRE and IMPLEMENTATION). The RFC also
extends POP3 error messages so that machine parsable codes can be
provided to the client.

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