Major email Protocols

POP (Post Office Protocol)
Since email needs to be downloaded into desktop PC before being displayed, you may have the following problems for POP3 access:

• You need to download all email again when using another desktop PC to check your email.
• May get confused if you need to check email both in the office and at home.

The downloaded email may be deleted from the server depending on the setting of your email client.
IMAP( Internet Message Access Protocol (IMAP)
Since email is kept on server, it would gain the following benefits for IMAP access:

• No need to download all email when using other desktop PC to check your email.
• Easier to identify the unread email.