Uniwersal serwer and secure email

Hello

I implement Secure Encryption Server.

Integrate with with Symantec Messaging Gateway as  conditional forwarder . When set Secure PDF all is ok (from echxange email go to SMG and forward to US and then go back to SMG and send to client.

But have same problem with secure email. When set as preferred on Web Email Protection on Uniwersal Serwer , I notice that in header email that emails are send directly from Encryption Server.
How reroute secure email to brighmail?
SEcure PDF go my email flow but secure emial don't go this patch only go send imediatly do recipent.  

Is it normal behavior?