IMAP Mail Protocol
The Internet Message Access Protocol (IMAP) protocol is used by e-mail clients to synchronize mail from a remote server. The more secure IMAPS protocol is more widely deployed, but IMAP is still in use.
Internet Message Access Protocol
IMAP is essentially unencrypted, so usernames and passwords are sent across the network in an insecure manner. If you see the IMAP protocol on your network, you should encourage the use of the alternative secure IMAP (IMAPS) protocol.
- TCP 143 - IMAP mail port.
- TCP 993 - Secure IMAP mail port.
Related ProtocolsA list of related protocols is below. List of all protocols.
|Secure POP Mail||Details|
|Secure SMTP Mail||Details|
|Secure IMAP Mail||Details|
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