Could you tell us how could you disable the Acess protection policy (either by ePO or VSE )?
If you have done this options in VSE on ePO managed client then the settings will revert back to its original after the policy enforcement .
Kindly do this action on ePO server and check the status
1)kindly select your computer name on ePO conslole
2)click action under the ePO console
3)select agent and modify policies on single machine
4)select VSE8.x as product and edit the access protection policies
5)select the antivirus standar protection and untick the « Prevent mass mailing worms sending mail »