Using Outlook for iOS in educational settings for communication and organization
Since Outlook on the web shows the newer mail, the mailbox itself is working and the issue is with the mobile clients syncing.
Try these steps in order:
- Force close and reopen Outlook on iPhone and iPad.
- This is the first reset step for incomplete or incorrect data.
- Reset the account again from inside Outlook.
- Open Outlook > Settings > select the affected email account > Reset Account.
- This refreshes the account data on the device.
- Make sure Outlook mobile is fully updated.
- Recurring password or sync issues can happen when the app’s security standards have changed. Installing the latest Outlook mobile version is the recommended fix.
- If the account was changed recently, delete and re-add it once more.
- This is specifically recommended when account settings are no longer importing correctly after an account change such as a primary alias change.
- In Outlook mobile: Settings > select the affected account > Delete Account.
- Then add the account back so the proper settings are imported.
- If mail is missing only in Outlook.com, check mailbox filtering on the web.
- Check the Other tab.
- Check the Junk Email folder and Junk Email settings.
- Check whether email forwarding is enabled.
- Check whether any rules are moving or hiding messages.
- Check message sorting with Filter > Sort > Date.
- If the account is added to the iPhone/iPad default Mail app instead of Outlook mobile, re-enter the password there.
- Go to Settings > Mail > Accounts > select the Outlook account.
- Open Account Settings or the Password field.
- Enter the correct password, tap Done, then open Mail and confirm sync.
- If sign-in prompts keep appearing, use the Microsoft sign-in helper for personal accounts, or password reset/IT admin help for work or school accounts.
Because deleting/re-adding and resetting have already been tried many times, the most relevant next checks are:
- update Outlook mobile,
- verify web filtering/rules/forwarding,
- confirm whether the account is in the Outlook app or the Apple Mail app,
- and if the issue started after an account change, delete and re-add the account once using the current account details.
If the issue is only in Outlook for iOS and iPadOS after those checks, use Outlook mobile > Settings > Help & Feedback > Contact Support.
- How do I clear the cache or locally reset/refresh the client/app? | Microsoft Support
- Can't sign in to the Outlook mobile app | Microsoft Support
- Can't send or receive email in Outlook.com | Microsoft Support
- iOS & iPadOS users may experience issues accessing their Outlook and Hotmail accounts from the iOS/iPadOS default Mail app | Microsoft Support
- After I changed my primary alias on my outlook.com account, I can't log back in