What are the differences between POP3 and IMAP


Many email providers ask me if I'm interested in using POP3, or IMAP. What exactly are these and when should I consider using them?

Best Answer

IMAP is fantastic if you are using the same email account on multiple devices, such as a desktop PC, mobile phone, laptop and web interface. Whenever you read an email on one device, that is synced to the IMAP server and then synced down to all the other devices and marked as read on every device.

POP3, on the other hand, downloads the emails to a client then (typically) deletes it from the server. So this means if you get an email whilst you are out and about on your mobile phone and read it, you will not get it on your desktop PC.

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