| Port No | 110 |
| Service Name | pop3 / postoffice |
| RFC Doc | 1725 |
| Protocol | UDP |
| Description | POP3 is used by e-mail clients (Outlook, Eudora, Netscape, etc.) to retrieve a person's e-mail from a mail server. POP3 is one of the most popular services on the Internet, and one of the favorite services hackers try to break into. |
| Reference Link | Post Office Protocol - Version 3: RFC1725 Some Observations on Implementations of the Post Office Protocol (POP3): RF |
| Attack |
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