That's when you talk with your company IT folk about how to solve corporate email on Android issues. Sometimes they'll have you install or install for you some other app.
Just like the PC we don't have to use the native app. This is new to some folk new to Android. I find the stock email app to be too stripped down for me.
Example banter at http://forums.androidcentral.com/android-apps/511945-what-s-best-android-email-app-thunderbird-out-android.html
I could set gmail and yahoo account easily.
When I went to set my corporate account, which is based on gmail, things started falling apart.
Emails show up briefly in the inbox ad then they just get deleted on their won. And what more, they get deleted from the server as well !!
I have not set the "delete from server" button.
But it is still happening.
I spent 770USD to purchase this huge block of a phone and now just biting my finger....
There are too many issues, if I need to list all of them, I need to be sitting on this forum for hours...
However the email bug is the biggest bug bugging me right now.