You are trying to sign-in to your WWU email as firstname.lastname@example.org but it keeps automatically loading another Microsoft mailbox (like your email@example.com mailbox).
You sign-out of your WWU email in a Web browser, but it immediately reloads your inbox.
Clear the saved password from your browser settings
|Clear all saved passwords from Chrome, Internet Explorer or Edge on a Windows computer||
|Chrome for Windows or MacOS - Clear only your WWU email password||
|Internet Explorer or Edge for Windows - Clear only your email password||
|Safari for MacOS - Clear only your email password||
Office 365 Help and Training Links
- Office 365 for Students, Faculty and Staff: Changes for Spring 2016
- Get Started with Office 365 at Western
- Connect Outlook or a Mobile Device
- Microsoft's Office Training Center