Configuring preferences and options in Outlook.com
Hi, Amanda Unser
Since junk mail still arrives, the address is active. The next things to check are mailbox capacity, account security, and whether the problem exists only in the Outlook app.
Here are some suggestions you can try:
Sign in at Outlook.com, then open Settings > General > Storage. If either mailbox or Microsoft cloud storage is full, new messages can be rejected. Empty Deleted Items, then delete a few large messages and attachments. Messages sent while storage was full are normally returned to the sender and cannot be delivered afterward. Check Outlook.com sending and receiving problems
Search All folders for a recent sender’s address. Also manually check Deleted Items and Archive, as this confirms whether mail is arriving but being moved somewhere unexpected.
Send a test message to yourself from a different email service. If it appears on Outlook.com but not in the app, remove and re-add the account in that app, or create a new Outlook profile.
Review the account’s Recent activity and change the password if anything is unfamiliar. An account restriction or unusual sign-in activity can affect mail service.
Thank you for your patience in reading, I hope this information has been helpful to you.
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