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Internet Message Access Protocol (IMAP)

Posted: February 10, 2022 | by Michael Bright

In computer messaging, the Internet Message Access Protocol or IMAP is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection. IMAP allows two-way syncing and complete management of your mailbox on an IMAP server by multiple mail clients.

Secure IMAP servers listen on port 993, while non-secure non-encrypted communication typically happens on port 143.

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