This article contains answers to frequently asked questions about domains in Microsoft 365. Check out Microsoft 365 small business help on YouTube. If you can't find an answer to your question, let us know by leaving a comment and we'll add it to the list. Mail is delivered to the mail exchange server with the lowest preference number (highest priority), so the MX record you use for mail routing s
![Domains Frequently Asked Questions](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6e4cb632c7025e9f5e05fd314fbf6dcd6144e8d/height=288;version=1;width=512/https%3A%2F%2Flearn.microsoft.com%2Fen-us%2Fmedia%2Fopen-graph-image.png)