POP Protocol :
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What is POP ?
Today, two different techniques are used to check for new mail: POP and IMAP protocols. POP (Post Office Protocol) is still commonly used today.
POP, the latest version is version 3 (POP3 and speaking), has been designed to allow you to get your mail on a remote machine when you are not permanently connected to the Internet.
POP is your servant: you give him the key to your mailbox, it will check your mail and bring it to you on a platter, that is to say in your email software.
The POP protocol handles authentication, that is to say, to verify your username and password. It blocks also, your mailbox while you go, not allowing another connection at the same time access to your mail.
POP also supports sending and receiving messages (ERR) or acquittal (OK).
POP also supports sending and receiving messages (ERR) or acquittal (OK).
Concretely ...
POP supports the following commands:
- LIST : gives the number of files on the server with their number
- RETR numéro : number fetch mail waiting on your server
- DELE numéro : Number destroyed mail
- NOOP : verifies the connection
- LAST : retrieves the last message arrived at the server
- QUIT : leaves the session and allows another
That's why in your e-mail address you need to give your POP server, usually the type pop.bidule.fr
The evolution of the e-mail to nomadism and the lack of flexibility of POPs however favored the emergence of another protocol: IMAP
The evolution of the e-mail to nomadism and the lack of flexibility of POPs however favored the emergence of another protocol: IMAP
