Question

19.IMAP maintains a copy of all the
emails on server


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Answer 1

Answer:

If you are using POP to connect your Outlook email client to the mail server, you may wish to leave a copy of email messages on the server (perhaps for a predetermined length of time). Leaving a copy of the email on the server can provide you with an added layer of backup security for important email messages. If you choose to leave a copy of email messages on the mail server, and unless you've configured Outlook to removed the copy after "x" number of days, we recommend that you regularly login and maintain messages on the mail server to avoid running out of storage space that may be consumed with unwanted messages.