1.) Click on Tools and then click on E-mail Accounts.



2.) Ensure the bullet is next to "View or change existing e-mail accounts" & click Next.



3.) Highlight the right account & click on Change.



4.) Make sure Your name/Email address is correct, make sure the Incoming/Outgoing mail
     servers are correct, make sure the User name/Password are correct, & then click More Settings.



5.) Click Finish.