less than 1 minute read

nc -nv 10.10.10.3 110

Connection

telnet 10.10.10.3 110

Capabilities of the POP3 server

nmap --script "pop3-capabilities or pop3-ntlm-info" -sV -port 110 10.10.10.3

POP Commands

Command Description
USER uid Log in to the POP server using the username specified by “uid”.
PASS password Provide the password specified by “password” for the current user.
STAT Get the number of messages and total mailbox size in bytes.
LIST List all messages with their sizes in bytes.
RETR n Retrieve and display the entire message number n.
DELE n Mark message number n for deletion (removed on QUIT if not reset).
RSET Undo all DELE commands issued during the current session.
QUIT Logout and close the connection. Executes deletions if any.
TOP msg n Show header and first n lines of message number msg.
CAPA List server-supported capabilities.

Example

telnet 10.10.10.3 110 
+OK beta POP3 server (JAMES POP3 Server 2.3.2) ready 
USER billydean +OK PASS password 
+OK Welcome billydean 

list 

+OK 2 1807 
1 786 
2 1021 

retr 1 

+OK Message follows 
From: jamesbrown@motown.com 
Dear Billy Dean, Here is your login for remote desktop ... try not to forget it this time! 
username: billydean 
password: PA$$W0RD!Z