Source: https://www.slipstick.com/outlook/rename-exchange-mailbox-account-outlook/
For Example the email address joy@cen…. change to joychow@cen….
Goto access “Account Properties”
Account Setting > Account Setting
Change and Modify e-mail > Other Setting > General tabs modify the e-mail.
After modify the name, close and open outlook few times, the name will changed.
