Confused Microsoft Support…

<p>A few years back my issue with spam got so bad that I started creating aliases do different things. For example [email protected]. That way I would be able to tell which companies were selling my e-mail address and maybe I could get a better hold of the spam problem (this was before advanced threat protections and other features were included as part of the subscription). </p><p><br></p><p>My plan did not work because of this very problem. The incoming mail would always show my real email address once received by Office 365, and not the Alias. I tried looking into the header, some transport rules, but no, it was already translated when it reached my tenant. I have always though this to be dumb and Microsoft never fixed it when I confronted them about this. It has been 10 years at least since that call.</p><p><br></p><p>Now my plan includes Advanced Threat Protection, Defender and Information Protection and the problem has been greatly reduced.</p>