Email Protocols

Email Protocols

1. Simple Mail Transfer Protocol

   • The internet standard for sending emails across an IP network.
   • Server-to-server transfers.
   • Email users also use it to send messages to an email server.

2. Post Office Protocol 3

   • Used to retrieve emails from an email server over a TCP/IP connection.
   • The most popular and widely used email retrival protocol.
   • Normally users download emails to their local computer using POP3, deleting them from the email server, this ensures that emails can be read without the use of internet connection once the download has been completed.

3. Internet Message Access Protocol

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