If you’re already using POP3 and wish to switch your settings from POP3 to IMAP, the below steps should help you make the move. 

  • Back up your mailbox - It's really important that you create a backup of your mailbox. Changing your settings from POP3 to IMAP can cause your emails to be deleted, so it’s a good idea to save a copy of your existing mailbox to avoid losing anything.
  • Delete your POP account on every device
  • Add IMAP using the settings here