Using Outlook for iOS in business environments for email and scheduling
Yes. The reported behavior matches a known service issue pattern where users may be unable to access mailboxes in Outlook on the web, mobile apps, and other clients, and no user action is required while service recovery is in progress.
For the iPhone symptom specifically, if the Outlook for iOS app shows the account as disconnected, signing in again can restore access once the service issue is resolved. If Apple Mail is also prompting for passwords or showing connection errors, remove the account and add it back as Outlook.com in Settings > Mail > Accounts > Add Account. If that still fails, remove it again, go to Settings > Safari > Clear History and Website Data, reboot the iPhone, and then add the account back.
If the issue is only in the iOS/iPadOS default Mail app and it shows Account not authenticated, Please enter the password, or Cannot Get Mail – The connection to the server failed, re-enter the password in Settings > Mail > Accounts > [account] > Account Settings/Password, then open Mail and confirm sync.
References:
- Cannot Access Email Account on Browser, Outlook App, Desktop or iOS HELP - Microsoft Q&A
- I'm seeing "account disconnected." What can I do?
- Outlook and other apps are unable to connect to Outlook.com when using Basic authentication
- iOS & iPadOS users may experience issues accessing their Outlook and Hotmail accounts from the iOS/iPadOS default Mail app