--If your corporate e-mail system uses Microsoft Exchange Server 2003 or 2007, your can use Exchange ActiveSync on your Windows Mobile device to sync your mail and organizer information directly with your company's Exchange server. To do this, though, you must have an account on the Exchange Server.

--Check with your system administrator to find out your Exchange Server address and domain name, user name and password, and any special security requirements, such as SSL authentication. You may also need to activate a data plan with your carrier to utilize ActiveSync.

--If your company uses Microsoft Exchange Server 2003 SP2 or 2007, the Global Address List (GAL) contains all user, group, and distribution list e-mail addresses for your organization and is stored on the Exchange Server. Using Exchange ActiveSync on your Windows Mobile device, you can access the GAL and use it to plan a meeting, update a group, or find e-mail addresses, etc.

Click here for more e-mail basics.