From an ISP'S view ,pop3. and imap differ in an important way pop3 users generally empty their mailboxes everyday. IMAP users keep their mail on the server indefinitely.imagine that you were called in...

From an ISP'S view ,pop3. and imap differ in an important way pop3 users generally empty their mailboxes everyday. IMAP users keep their mail on the server indefinitely.imagine that you were called in to advise an ISP on which protocol it should support. What considerations would you bring up?