POP3

POP3 service is a email receiving service. So every messages which is received will be available in the POP3 service. Detailed and technical explanation at wikipedia

Requires: valid credenials of the user is required to enumerate information from this port

Connecting to the service

telnet 10.10.10.17 110
+OK Dovecot ready.
USER orestis
+OK
PASS kHGuERB29DNiNE                                    
+OK Logged in

• USER <username>

• PASS <password>

Listing and Accessing the emails

LIST                                                                                                                                  
+OK 2 messages:                                                                                                                       
1 977                                                                                                                                 
2 514                                                                                                                                 
.                                                                                                                                     
RETR 1                                                                                                                                
+OK 977 octets 
<snip>

• LIST -> Lists the available emails with the index

• RETR <no> -> Access the email contents