When Apple users try to add their outlook.com email address to any iOS device like iPhone or iPad they getting error message like “Unable to verify account information”. But Exchange sync worked on previous iOS.
This problem mostly happened in two iOS versions like iOS 5 and iOS 8.1.
This error might Microsoft related with your mobile number. In your web browser, sign in your account and go to Settings. Then disable any number you have listed. Also disable 2 step security.
Turn off SSL.
Go to Settings > Mail, Contacts, Calendars > Exchange account > Account. Then turn off “Use SSL”.
Rest network settings.
Settings ->General ->reset -> Reset Network Settings.
Sign in to Outlook Web App. Go to Options -> Phone -> Mobile Phones and delete your registered device.
- Delete the exchange account. Reset the wireless network. The re-add the account.
- Turn off WiFi. Try to add your exchange account using cellular connection.
SEE ALSO : How to Setup Yahoo Email Account on iPhone and iPad
If you still have this issue, do let us via comment.