Outlook's AutoComplete list automatically remembers and suggests email addresses and recipient names as you type in the To, Cc, or Bcc fields of an email message to help you address emails more quickly. You can easily keep your AutoComplete recommendations current by removing stale, unused addresses when they appear. If you remove an address from your AutoComplete by mistake it will be added back to your AutoComplete list the next time you add the address to an email.
Remove Individual Addresses From Your AutoComplete List
- Begin addressing an email to see the list of possible address matches.
- Click the "X" to the right of an address to remove it from your Auto-Complete's memory.

Remove All Cached Email Addresses From AutoComplete (Outlook Desktop App)
- Click File at the upper-left, then select Options.
- At the left select Mail.
- At the right under Send messages, click Empty Auto-Complete List.
- Click OK.
