Another problem is that with MA 5 I couldn't see DLP Endpoint Console and Drive Encryption Console. With lucky I noticed that there was a new version of both product (DLP 9.3.4 and EEFF 22.214.171.124) so I downloaded them and try to install them to an endpoint. Wow, DLP Endpoint console and Drive Encryption Console now appeared. I deployed to my environment but another problem appeared: "SEND" button of outlook 2010 was not working, like it was disabled. The Outlook plugin "McAfee DLP Outlook AddIn" didn't work. I disabled it and Outlook worked perfectly. I then reinstalled DLP 9.3.3 (with the problem of MA 5 that I didn't see the DLP Endpoint Console on the client side) and Outlook worked.
Someone has the same issue with DLP 9.3.4?
Patch 5 has not been released yet. There is a POC patch 5 that you could get if you open a case with McAfee support
Try to make a change (any setting) to the DLP agent configuration. Save the changes and push it to your endpoints.
That should do the trick to fix the Outlook send email issue.
I guess you can also revert the change immediately after saving it the first time and then push it to endpoints.
Let us know if this fixes your issue with outlook.