Configuring POP, IMAP, ActiveSync, and Outlook Anywhere

If you are managing an Exchange organization in a heterogeneous environment where you have all kinds of clients connecting to Exchange, the chances are that you have your POP3 and IMAP4 services enabled in your Exchange Client Access Servers.

Let's see the usage of POP3 and IMAP4 protocols in Exchange

Configuring POP3 and IMAP4POP3 is a widely used protocol for e-mail access. The POP3 client downloads the messages to a client computer, and then these messages are removed from the server. However, there are a few POP3 applications that allow you to keep a copy of the message on your server so that it can be accessed from a different device. POP3 allows e-mails to be downloaded to one folder (inbox) in client computers, and it doesn't have the capability to synchronize multiple folders.

IMAP4 offers more features than POP3 such as support for a copy of e-mail messages kept on the server to be accessed from a different location...