When I am trying to search for an email address in Gmail, let's say starting with 'a', it always shows me a particular email account which was in my contact list a long time ago. Even after deleting the contact and the emails, it still appears in my search for auto-fill. This happens in any browser; so it is not the cache of the browser though I have cleared that as well. I even went to the Web and App activity and deleted all history, but it didn't help. How do I resolve this?