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What are the differences between IMAP and POP3?

Email is electronic mail. POP and IMAP are the protocols that deliver electronic mail to an email inbox on your computer or phone.

POP and IMAP work in different and distinct ways. Your email needs will determine which email protocol is right for you.

POP3 and IMAP email differences

If you have Outlook and are using a POP account, here is how you can change the settings to allow you to leave a copy of the messages on the server:

  1. Open Outlook.
  2. Click the File tab - Account settings.
  3. Highlight your current POP3 account and click Change. Note: The window that opens will tell you what type of email account you have. (Look under Type.)
  4. Choose More settings button and then click on Advanced tab at the top.
  5. You should see towards the bottom a box titled: Leave a copy of messages on server.
  6. Checking the box will enable “Leave a copy of the message on server”.
  7. You can also check the boxes “Remove from server after ## days”(and you can change how many days you want to stay on the server before they are deleted) and/or “Remove from server when deleted from ‘Deleted Items’.”
  8. Click apply and then OK

With having multiple devices that can check email today, changing settings to fit your need is vital to saving your time, energy and sometimes your sanity.