Post Office Protocol

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Post Office Protocol

[¦pōst ‚ȯf·əs ′prōd·ə‚ku̇l]
(computer science)
An Internet standard for delivering e-mail from a server to an e-mail client on a personal computer. Abbreviated POP.

Post Office Protocol

(messaging, protocol)
(POP) A protocol designed to allow single-user computers to retrieve electronic mail from a POP server via TCP/IP. The default port is 110.

The POP server might be a computer with a permanent Internet connection whereas its clients might only connect to it occasionally, e.g. by modem.

There are (in 1994) three versions: POP, POP2, and POP3. Later versions are NOT compatible with earlier ones.

POP3

(Post Office Protocol 3) A programming interface (API) from the IETF that enables a user's email program to access the mail server (RFC 1939 standard). Email clients such as Outlook, Mail, Eudora and Thunderbird are typically configured to retrieve mail either via POP3 or IMAP4, the other popular standard.

POP3 is a simple system with limited selectivity. Incoming messages and attachments are downloaded when users check their mail, and POP is typically configured to delete the messages on the server after downloading. If the user opts to not delete them, the messages will download again the next time mail is checked. See IMAP4, email interfaces, SMTP and messaging system.


Incoming Mail Options
Most Internet mail services offer all three options. Users may choose IMAP if they need access from several computers or if they like to keep mail online indefinitely (see IMAP4).
References in periodicals archive ?
Beginning with new releases of Vivee's software, Vivee will also be enabled to "listen" to the user's spoken response to incoming messages and generate text responses in either POP email or SMS text formats.
There's improved email connectivity too - along with access to corporate and POP email, 5.0 can access Hotmail and MSN from within Outlook Mobile.
System requirements: you must have _ a POP email account of the type provided by an internet service provider.