E-mail clients, such as Eudora, Outlook Express, Netscape Mail, Pine, etc., cannot access MS Exchange via the default protocol (MAPI) created by Microsoft. Instead, they must access e-mail via POP3 or IMAP.  This configuration also will work for any IMAP enabled mobile phone or wireless client that does not support native ActiveSync such as the Apple IPhone.

Note: POP3 access does not allow access to most features of MS Exchange. It only gives access to just receiving and sending e-mail. You will not be able to share your calendar, folders, Public Folders, Global Address List, etc.

Here is the information that you will need to setup an IMAP client:

Incoming Server Name: mail.exchangesync.com
Outgoing Server Name: mail.exchangesync.com
Username or Account name: <Your Primary Email Address: YourName@YourDomain.com>

NOTE: To enable outgoing e-mail, you need to tell your e-mail client software that the outgoing server requires authentication and that it is the same as the incoming server settings.