Using Outlook for Android in business environments for email and scheduling
Hi Ally147,
Thank you for posting your question here in Microsoft Community. We are glad to assist you with your concern about not being able to access your account using the Outlook.com app on your mobile device.
In addition, you also mentioned that you are also not able to access your account using the native email app on your mobile device. Can you confirm if you the same issue would persist when you access your account using a computer?
In the meantime, we recommend that you download the latest version of Outlook.com app as other users reported that it resolved their issue.
If you have further questions, please do not hesitate to post back.
Regards,
Johayber T.