Stop iOS devices from suggesting an old email address

Question

How do I stop my iOS devices from suggesting an email address that was previously used?  If I select an email address for, e.g. "John Doe" who may have several email addresses, only "John Doe" appears in the To field.  If I have long ago deleted an old email address for John Doe in my Contact records, the old email address will still be suggested.
It would also be nice to see the full name followed by the email address in the To field, e.g John Doe <[email protected]>.  This is how the addressee is displayed in Apple Mail. Also in Apple Mail you can find a previous recipient list at Windows>Previous Recipients, and delete any.

Answer 1

If the person is still listed as a contact in your contacts app, this will not appear. You have to delete the contact from the contacts app.
I am making an assumption here. Even if you deleted the old email address associated with that contact, the old suggested address may still appear as long as the person is still in your contacts app. You would have to delete the contact and enter it again.
Bear in mind, I am making assumption on how I believe that it works. I do know that if the email address is not in your contacts, you can delete it via the method I explained above.