POP and IMAP are the ways in which you can configure access to Mail in the mail program (client) on your computer or in the app on smartphones and tablets.
With IMAP (Internet Mail Access Control) , your messages , both in your Inbox and in all other folders, remain on the server : a copy is downloaded to your computer or mobile device. You can then access your inbox from any device , whether mobile or PC, as long as they are all set up with IMAP, even from Webmail.
If you choose the POP (Post Office Protocol) mode, the messages will be taken from the server's Inbox and downloaded locally to your PC : therefore, they will no longer be present in the Webmail , unless you choose the option in the POP that allows you to keep a copy of the messages on the server.
If you want consult the mail in several ways (for example a client and the Webmail or the webmail and several clients or mobile phones and tablets) we recommend to configure the box on clients always using the IMAP protocol.
We also recommend IMAP because POP in some cases it might cause synchronization problems of mails and folders when accessing the mailbox at the same time in different ways.
SWITCHING FROM POP TO IMAP (and vice versa)
If you want to switch between accounts POP already configured to an IMAP and you are not an expert, fai much attention: By deleting or modifying an already configured POP account, you risk lose your mail previously downloaded to your PC. If you don't know how to do it, then, we advise you to consult an expert.
Even switching between accounts IMAP already configured to POP requires a minimum of knowledge: also in this case we recommend that you contact an expert or contact us for advice.