From Bravenet Wiki
IMAP is a protocol for retrieving e-mail from a mail server. Along with POP3, it is one of the two methods of managing incoming mail
Differences From POP3
POP3 is the most standard way of checking mail. However, IMAP has quite a few advantages over POP3: - By default, POP3 deletes messages from the remote server, and manages all mail on the local computer - IMAP manages all of its mail on the remote server. - IMAP works well in a situation where you might check your mail from multiple devices. - IMAP is more efficient - it uses message flags and transfers only the message headers when it can
We do recommend using IMAP instead of POP3 whenever possible
Accessing your bravenet e-mail through IMAP
See our instructions on Checking your e-mail for more information.