Companies may require user authentication through Azure. ExSign allows users to log in and get authenticated through Azure. For users to log in through Azure, the same users must exist in both Azure AD as well as in the respective on-premises AD. ExSign Admin and Exchange Admin users must exist in Portal Active Directory while OU Admin users must exist in their own remote Active Directories (entities).
The following are the steps required for enabling authentication through Azure:
Steps required for Signing with Azure