E-Mail Protocol

E-Mail Protocol

1. Simple Mail Tansfer Protocol

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

2. Post Office Protocol 3

   • POP3
     • Used to retrieve 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.

3. Internet Message Access Protocol

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