If your IT team has enabled it, you will have a new button in Outlook to report those evil email that get through the spam filters sometimes. Doing this helps to build Microsoft's ability to spot them in the future, so it's good practice. If your IT Team has not configured it, maybe we can help! Reach out here.
Here's how it appears, usually in the top-right part of your email on both Outlook in Windows and Outlook on the Web.
Outlook App on Windows
Outlook on the Web
