Deleting Auto complete email addresses gmail app I have a common contact with an old email address that keeps popping up on autocomplete when I send an email with my Gmail application. The contact for this person does not contain this email address and I have searched the desktop version of the contact as well and it's not there. How do I delete this old outdated email address from autocomplete on my Gmail application for my Android?

Thanks
Gmail autocompletes email addresses based both on previous communication and Google Contacts. 

You should edit the contact in question to remove the old email address from their contact entry on Google Contacts, or in the Contacts app of your device, and if that doesn't work go into Settings - Apps and find Gmail and Clear Data on the app. Be aware that that this will erase all emails and data for Gmail that are stored locally on your device, it will not delete Gmail on the server, and it will be resynced to the device after you open the app again, but if you use Gmail for POP3 email access those emails may not be stored on the server and should be backed up first.