This affects Mobile Email Management deployments via Google with password retention in AirWatch 8.1. If device model compliance is configured to block a specific device model, that device will continue to receive email. In the Email Management Dashboard the device will display as blocked with the reason "Unapproved Model," but the device itself will continue to receive emails.
This issue has been given identifier CMEM-180763. This issue has been resolved in AirWatch 8.1 FP1.