My company changed over to requiring Maas360 and TouchDown for accessing the 2010 Exchange Server. I poked around through the TouchDown settings to find the new server address and was able to setup my work account using the stock email app. TouchDown is still installed but pretty much disabled. I have had no issues with my work email account and get most of the email body on my gear. Don't know if this will work for you, but it's worth a shot.
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