Is there an alternative to using Outlook to check my Exchange mailbox? View The Full Article If you have difficulties using Microsoft Outlook to check your Exchange mailbox, you can use the Outlook Web Access OWA page. To do this, connect to the Internet and launch your browser. To access your Exchange mailbox at Clemson University, go to: https://xmail.clemson.edu Use your userid and password to log into the Exchange server. You will see that the OWA page is almost identical to the interface for the Outlook program.