POP3

POP3 (Post Office Protocol version 3) is one of the major email protocols along with SMTP and IMAP, and belongs to the application layer of the Internet protocol suite∞.
It is one of the three (four, if you count forwarding) methods for retrieving messages from a SpamCop Email Account. The other two are IMAP and WebMail. You need a local email client to make use of POP3 which will download all unread mail to your local email client but does allow for the option of leaving a copy of the messages on the server.

It is sometimes incorrectly refered to as POP, the original version of the protocol which was replaced by POP2 and then by POP3
The term POP is also used as a verb meaning to use the POP3 protocol to download mail. It may also be see as "POPs"

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