How do you totally delete an email address?

Delete email address continues to show up when typing person's name ~ how do I delete old address?

• I revised a person's new email address but the old one continues to show up when typing name to compose email. It's not on contact list, so how do I permanent delete an old email address?

• Answer:

  You can readd the old deleted address, click Save Changes. Then Delete it and save changes. That works for others. This is another one of the bugs happening at this time.