Configuring preferences and options in Outlook.com
Just checked. Not fixed for me.
I had the same issue and for me what worked was adding a mobile number to my account.
So initially I had the following = The 'Save' button did not show
- Secondary email
Then I had the following = The 'Save' button did not show (even though authentication came through via the Auth App instead of email this time)
- Secondary email
- Authentication App
Then finally I had the following = The 'Save' button showed! Yay! And the authentication still came through via the Auth App so nothing actually came through my mobile via text
- Mobile (text a code)
- Authentication App