Learn how to configure Microsoft Office 365 email settings to work with Hosted Email Security (HES).
This solution is for users with an activated domain in HES. If your domain is not yet activated, refer to the following articles to add or activate your domain:
Once your domain is activated, you can set up the Office 365 mail settings to work with HES by following the steps on this white paper: Hosted Email Security Integration with Microsoft Office 365.