Close Outlook, then open the Control Panel window by clicking your Start Menu then Settings. If you are using Windows XP and your Control Panel is displaying categories, click "Switch to classic view."

Double-click the Mail icon to access your mail setup.

Click "Show profiles."

Select the "Prompt for a profile to be used" toggle button at the bottom.

Click 'Add' then enter a name to help you identify this profile.

Place a checkmark to manually configure the account settings then click 'Next'.

Select "Microsoft Exchange" and click 'Next'.

Enter "bus-mail01" for the server name.

Enter your name or the name of the department mailbox in the user name field and click the 'Check name' button. Once the mailbox is recognized, the name will be underlined.

Click 'Next'.

The profile setup is complete. Click the Finish button and close the Mail Setup window.

Open Outlook and choose the profile from the dropdown list.