Open Outlook.com in a computer browser first; this determines whether the problem is account access, mailbox delivery, or only synchronization with the Outlook apps.
1. Check the mailbox in a browser
- Select Sign in.
- Enter the same Microsoft account email address and password used on the phone.
- Follow the matching result below.
If you cannot sign in
Use the Microsoft account sign-in helper from Microsoft’s sign-in guidance. Outlook.com support cannot recover account access directly; sign-in problems must go through the account recovery process.^1^
If Microsoft asks for an identity confirmation, complete it using the available security code method. Outlook.com may request verification after unusual sign-in activity or use of a new device.^2^
If you can sign in and recent email appears online
The mailbox is receiving email, so the computer or phone app has a synchronization problem.
For the phone’s Outlook app:
- Open Outlook.
- Tap Inbox or the account icon at the top.
- Tap ? at the bottom.
- Select Contact Outlook Mobile Support.
Microsoft provides this in-app route specifically for Outlook for Android and iOS problems.^1^
If email is also missing online after Sunday
This is not limited to the phone app. In Outlook.com:
- Open Other, Junk Email, Deleted Items, Archive, and any custom folders.
- Select Filter → Sort → Date so the newest messages appear first.
- Open Settings → Mail → Rules and disable any rule that is moving or deleting incoming messages.
- Open Settings → Mail → Forwarding and disable forwarding unless you intentionally use it.
- Check the mailbox/cloud Storage setting. If Microsoft cloud storage is full, Outlook.com cannot send or receive mail; messages sent while it was full are returned to senders and cannot be recovered.
- Send a test message from another email account. If it does not arrive, ask whether the sender received a non-delivery notice.
These are Microsoft’s recommended checks for an Outlook.com mailbox that has stopped receiving messages.^3^
2. Contact Outlook.com support if the web mailbox remains stale
While signed in to Outlook.com:
- Select Help on the top menu, then Help again.
- Search for cannot receive emails.
- If the suggestions do not resolve it, scroll to Still need help?
- Select Yes and submit the support request.
- Include the approximate date messages stopped, examples of affected senders, and whether they received delivery-failure notices. Do not post complete email addresses publicly.
If Still need help? is not visible after opening an article, select the back arrow in the Help pane.^1^
References
- How to get support for Outlook.com | Microsoft Support
- How to sign in to Outlook.com | Microsoft Support
- Can't send or receive email in Outlook.com | Microsoft Support