POP Mail Protocol

Protocol Description

The Post Office Protocol (POP) is a protocol used by e-mail clients to retrieve mail from a remote server. The IMAP mail protocol is much more prevalent these days, but the protocol is still in use.

Full Name

Post Office Protocol

Abbreviation

POP3

ProTips

POP3 is unencrypted, so usernames and passwords are sent across the network in clear text. If you see the POP3 protocol on your network, you should encourage the use of the alternative secure POP (POPS) protocol.

Known Ports

  • TCP 110 - POP3 mail port.
  • TCP 995 - Secure POP3 mail port.

Category

Mail

External Resources

Related Protocols

A list of related protocols is below. List of all protocols.
Category Name

Mail

IMAP Mail Details

Mail

Lotus Notes Details

Mail

SMTP Mail Details

Mail

Secure POP Mail Details

Mail

Secure SMTP Mail Details

Mail

Secure IMAP Mail Details

Protocol Detection

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