When you configure ENS2 for Workspace ONE Boxer and want to use Certificate-Based Authentication (CBA) for authentication, you must follow the steps listed in this section for ENS2 to work with CBA.

  1. Configure Workspace ONE Boxer to use CBA. See Configure Certificate-Based Authentication on the Exchange Server.
  2. Change the appropriate settings to ensure that CBA is supported for the EWS endpoint and for EAS on the on-premise Exchange Server. See Using Office 365 with ENS2 and Certificate-Based Authentication and Configure Certificate-Based Authentication on the Exchange Server.
  3. If you are using Secure Email Gateway V2 (SEG V2), see the Secure Email Gateway V2 guide for information on the changes that are required on the SEG server.