Enforcing Max email age filter in Mobile Device Policies

I am trying to get control around max mail item age on mobile devices in Exchange 2013 on-premiss.  Everything I reference below is not the Web browser OWA.  I am referring to the OWA for Devices iOS/Android application.

History:
I am migrating from Exchange 2007 to 2013.  No cloud. We are using MobileIron to control access to ActiveSync.  MobileIron policy is configured to allow 1 month for company owned devices and 2 weeks for employee owned devices.  Exchange Mobile Device Policy is configured to allow 2 weeks. I want to allow users that do not want MobileIron of their personal devices to be able to access Mail via OWA for Devices iOS application.  Our Legal department and IT security is fine with this if we limit the mail on the device to 2 weeks.  Since OWA for Devices follows the same path as OWA and not ActiveSync I am able to allow users to bypass MobileIron without any infrastructure reconfiguration.

Problem:
Currently if I go into my settings and change the mail sync from 1 Month (defined by MobileIron) to all, I am able to sync all my mail on my ActiveSync device.  OWA for Devices appears to download all mail no matter what I define in the Mobile Device policy.

Questions:
Is it correct to assume there is no way to disable Offline mode for OWA for Devices?
Is there a command to selectively wipe only OWA for Devices data and not the entire device?
Is there a way to enforce the item age limit defined in the Mobile Device Policy so a user cannot download more than the limit defined
January 30th, 2015 4:27pm

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