If your email is hosted on Microsoft 365, it is essential to declare your Microsoft tenant in your e-securemail interface for Microsoft 365.

You need to log in as an Azure administrator to authorize e-securemail to synchronize your directory.

Log in and follow the instructions on your console: https://www.security-mail.net/office365.php

Important:

Without activation or authorization of the Microsoft tenant ID, you may encounter message rejections on our gateways.

If this activation banner does not appear, you will need to contact support@secuserve.com to enable the setting for the desired domain.