I have Exchange ActiveSync setup on my phone and it works as expected. My problem is that when I want to send an email in code it always uses the Gmail account (which of course I cannot remove) as the sender. It is essential that the account used be the Exchange one as that is the users business email account.
I used the code from Send auto email programmatically
It works fine but uses the Gmail account. I have set the Exchange ActiveSync account as the default but it makes no difference. The application is used in a corporate environment only.