Setup MAPI MAC OS (Mac Mail)
From Lunarpages Web Hosting Wiki
1. Open Mac Mail and click on Preferences from the Mail Menu.
2. Click on “Accounts and click the + button on bottom left.
3. Enter Name of account and email address with password.
4. Choose account type “Exchange 2007” (note that it’s not exchange 2007 but it will work the same).
Make sure to set incoming server name to “mail.lunarexchange.com” and turn on Address Book Contacts and iCal calendars for calendar and contact synchronization.
5. Verify the information and make sure to check “Take account online” to start functionality and sync from server.