It seems like you've already done extensive troubleshooting for your Outlook account, but you're still facing issues with not receiving emails from external domains. Given that you can receive Microsoft system emails but not emails from external providers, this could indicate a server-side issue or a restriction on your account.
Here are a few additional steps you might consider:
- Check with your email administrator: If you are part of an organization, there may be policies or settings at the server level that are blocking external emails. Your email administrator can check if there are any restrictions in place.
- Review your account settings: Sometimes, specific settings related to security or spam filtering can inadvertently block external emails. Ensure that there are no security settings that might prevent these emails from being delivered.
- Contact Microsoft Support: Since you suspect that there might be an inbound restriction on your account that is not visible in the Outlook interface, reaching out to Microsoft Support directly may be necessary. They can check the server-side status of your account and help identify any issues.
- Check for any recent changes: If there were any changes made to your account settings or security configurations around the time you stopped receiving emails, it might be worth reviewing those changes.
- Consider using the Outlook Web App: If you are primarily using the Outlook desktop application, try accessing your email through the Outlook Web App to see if the issue persists there.
These steps may help you identify the root cause of the issue. If the problem continues, Microsoft Support will be your best resource for resolving server-side issues.
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