OS X Snow Leopard sync calendar & contacts Exchange 2003

Davmail app acts as a proxy between client software and Exchange web access including 2003.

To sync iCal:

To sync Address Book:
Type = CardDav
Name = username
Server = localhost:1080
(allow a few minutes for contacts to sync)

GAL can also be searched:
Type = LDAP
Name = username
Server = localhost:1389