Thanks Andy. Yes, we believe it is the app that is not interpreting the emails correctly.
The app having the problem is Android Divide PIM 2.1.8-T7.4.0.0.38-88 (their latest version). Android Email+ is working. It sounds like MobileIron is not certain of the discrepancy between the two Android apps, but would like to put in a patch to somehow fix the issue.
iOS is working fine through either native/default email and with Email+.