Outlook offers autocomplete suggestions when you start to type in email addresses. But if an email address is no longer in use, or the person has left the role they were once in, you might want to remove these autocomplete addresses from the list so they won’t pop up anymore. Luckily, this isn’t difficult at all to do in Outlook.

• When you start typing a new address into Outlook, if you look over to the right-hand side of the screen, you’ll see an X next to the name that is currently highlighted in the list. Click on the X, and this is all you need to do to remove the unwanted name from the list.
• When you start typing the same address now, you’ll notice that the suggestion you deleted isn’t going to come up.

Here’s another trick to customize the autocomplete feature:

• Head up to the File menu, and then select Options. From there, choose Mail.
• If you find the Send messages section, you’ll notice that you have a few options when it comes to the autocomplete feature. First, you can empty the auto-complete list entirely by clicking on the Empty Auto-Complete List button. This will allow you to still use the feature but will essentially give you a fresh start, emptying all the old addresses from the auto-complete list and allowing you to start anew. This could be useful when you might be resurrecting an old email address after leaving it dormant for a long time and want to start without a list full of no longer relevant addresses. Or, if you’re not a fan of the feature at all, you can just turn it off by unchecking the “Use Auto-Complete List to suggest names” box.

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