The Post Office Protocol (POP) Version 3 mail interface is defined in Request for Comments (RFC) 1725. RFC is the mechanism used to define evolving Internet standards.
The client software uses commands called verbs to communicate with the POP server. The i5/OS® POP server supports the following verbs.
| Verb and parameters | Description |
|---|---|
| USER <id> | Pass user ID |
| PASS <password> | Password |
| STAT | Query mailbox |
| LIST <opt msg #> | Query message statistics |
| RETR <msg #> | Retrieve message |
| DELE <msg #> | Delete message |
| RSET | Reset message delete status |
| TOP <msg #> <lines> | Retrieve message header and data |
| UIDL <opt msg #> | Get message unique ID listing |
| NOOP | No operation |
| QUIT | Quit client session |
Related concepts
Scenario: Sending and receiving e-mail locally Post Office Protocol on i5/OS