For years I’ve been frustrated that when I go to address a message in Apple Mail I see old addresses for people or addresses that I’ve typed incorrectly.
Often, I would find that I had sent the message to the wrong person or to the incorrect address. I casually looked for a solution to the problem in the past but not until this morning when my grandfather asked me how to clear that cache did I really go looking for the answer.
Here is the very simple solution.
First, make sure the addresses in your Apple Contacts program (ie: your Address Book) are up-to-date and you have deleted old addresses.
Then, in Mail, go to the tab that says “Window” at the top and choose “Previous Recipients” from the drop-down menu. Clear the ones you never want to see again, or, do what I did and clear them all and start fresh with the new addresses being pulled from your Apple Contacts.
For the record, that’s two Apple Mail problems solved in one day!