Ever since i completed the Office 365 AD FS single sign-on project its bothered me that the user onsite still had to be inputting their username (Email address) into the Microsoft online portal page.
Turns out that there is no way to auto input the users email address from the portal page but if you use the url https://outlook.com/domainname.com it will do the SSO for outlook for you using the users credentials.
I have a redirected desktop for the users so i made a new desktop shortcut and in my case pointed it to:
https://outlook.com/student.********academy.com
So all a user has to do to access their office 365 is click the desktop shortcut and will auto read users credentials and auto login to their Office365.
