Welcome to the Microsoft Q&A forum.
I understand how frustrating and exhausting this situation is, especially when your inbox is being flooded with extortion spam and none of the recommended filtering or rule‑based steps have helped.
Since you’ve already tried all the standard Outlook and Junk Email configuration options without improvement, there are no additional client‑side steps that can be effectively applied from the forum.
Please also be advised that contributors on this forum do not have access to Microsoft’s internal spam‑filtering or mailbox protection systems, and it isn’t possible here to adjust, reset, or override how spam is handled at the service level. When spam filtering does not behave as expected after all supported steps are applied, the only remaining option is to have the issue reviewed directly by Microsoft Support.
Please follow the steps below to contact Microsoft Support for further assistance:
1, Visit the Microsoft Support contact page: Contact - Microsoft Support
2, In the search bar provided on the page, type "Outlook issue" and press Enter.
3, Click on the "Get Help" button that appears.
4, Scroll down the page until you see and click on the "Contact Support" option.
5, When prompted to select your product or service, choose "Other Products".
6, For the category, choose "Outlook".
7, Look for and click on "Chat with a support agent in your web browser".
8, Confirm your personal email when prompted - this is the email Microsoft will use to communicate with you during and after the support session.
9, When connected, clearly explain your situation. Be concise but include all relevant details
I hope this helps you reach the right team for further assistance.