Well, the email I pulled it from was written in 2010, and Good technology did not support blackberry at that time. So were they using non-approved devices to communicate?
https://readwrite.com/2010/08/04/good-technology/#awesm=~ojfhZ3ZByK9FK5
The email itself is a bit weird, so it led me off in another dig direction as well.
I’m not sure if Good technologies was comped at the time, or afterwards, or if it ever was. But it looks like the DOD required good technologies for all Android phones in 2012.