Email protocols

Email protocols

1. A seperate system of protocols has been devised for use purely by email. An email protocol is a set of rules which allows computers to send and revieve emails from a network.

2. Simple Mail Transfer Protocol (SMTP)

   • The internet standard used for sending messages across IP networks in server-to-server transfers. Also used by email users to send a message to an email server.

3. Post Office Protocol 3 (POP3)

   • Used to revieve emails from an email server over a TCP/IP connection. This is the most widely used email retrieval protocol. Normally users download emails to their local computer using POP3, deleting them from the email server.

4. Internet Message Access Protocol (IMAP)

   • This is the other popular email retrieval protocol. Normally users work on the emails as they reside on the email server using IMAP and do not download them.