Hi,
Thank you for sharing your question. I understand how alarming and frustrating it is to see unfamiliar logins, threatening emails, and settings changing on their own, especially after already working with multiple support agents.
Based on your description, it appears that your Outlook.com mailbox settings were modified by unauthorized access before you secured your sign‑in. When mailbox rules, blocked senders, and junk mail settings revert automatically, it usually indicates persistent malicious rules or hidden mailbox configuration conflicts. These issues require the Outlook Webmail In‑App Support team because they have administrative tools that standard Microsoft support cannot access.
To contact the Outlook Webmail In‑App Support team, you can open Outlook on the web, select the Help icon at the top right, choose “Get help,” and then type a short description such as “Account compromised – mailbox settings auto‑changing.” This automatically routes your case to the Outlook Web Support engineers. If you do not see the Help panel, use https://outlook.live.com, ensure you are signed in, and select the question‑mark icon in the upper‑right corner. The in‑product support channel is the only official way to escalate issues related to corrupted mailbox configuration for consumer Outlook.com accounts, as confirmed in current guidance from learn.microsoft.com.
Before you proceed, may I ask whether you can currently open the Help panel in Outlook on the web or if nothing appears when selecting the question‑mark icon?
Feel free to update me with what you see, and I’ll guide you through the next steps. I’m here to help until your account is fully back to normal.
I hope this helps.
Best Regards, Noel