How can I access full Exchange email features on iOS and android?

I currently use a virtual exchange server (2010) in conjunction with outlook 2007. I have several distribution groups set up so I can send from different email addresses through a single exchange server mailbox. This works fine on windows pcs. Unfortunately I have not found a way of accessing this full exchange functionality on either my android phone or my iPad. Neither the stock mail apps nor any third party mail apps I have tried support the use of distribution group From fields. Worse, the Outlook Web App that is fully featured on my windows pcs (where I don't need it) for some reason becomes a light version when accessed on an iPad air or android phone. The light version does not support From fields at all, whether distribution group based or not. I have tried using safari and dolphin and OWA always defaults to and won't let me change from the feature crippled light version.
Does anyone have any ideas as to how I can access Exchange's changeable From fields on iPad or Android phone?