Sorry I didn't get any of that -- what is AirWatch?
What do you mean by "the Mail is blocked"?
Do you mean you start attaching something (when composing a message) and AquaMail freezes?
As in -- Application Not Responding -- or a crash?
What is "the exact process name"? The package name? "org.kman.AquaMail".
The code that picks attachments uses Intent.GET_CONTENT_ACTION, supported by Android since 2.0.
If it's a crash, please email me the postmortem crash log:
http://www.aqua-mail.com/?page_id=232