Duplicate Corporate Sync Account "Null" My organization just switched to the Droid Razr Maxx, one of the phones is having an issue with adding a corporate sync email account.  Whenever we try to add the account it says that it can't add because of duplicate account "Null".  I don't see this "Null" account anywhere, so i can't seem to remove it.  I'm not really sure what we can do, besides doing a reset and would only do that as a last course of action.  We are running android version 4 and using office 365 exchange.
Try clearing Cache and Data for the following apps under Settings -&gt; Apps -&gt; All (tap on each app and then tap Clear data and Clear cache buttons where available):


Email
Exchange Services
Google Account Manager


This should clear all the accounts (including the GMail one), and should allow you to add the Corporate account.