I use the default email app for my corporate Exchange account. It works great. I also have a Google Apps account for which I only sync Google Drive, so that I have access to my Google Drive at work. However, everyone in my exchange Active Directory has a duplicate account in Google Apps. In my google apps account settings, I have contacts and Gmail set to never sync. Sync is off. However, whenever I am typing an address in my email app for exchange, all of me Google Apps Active Directory email addresses also come up, which is problematic because they are all duplicates of the exchange email addresses, since the directories are linked. Any idea how I can get the email app to stop Auto filling with the Google Apps email addresses? There are no relevant settings in the email app that would help with this, and I have everything in the Google Apps account settings set correctly.