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Quickly remove all duplicate recipients from To/Cc/Bcc fields in Outlook

Author: Kelly Last Modified: 2024-06-26

When creating, replying to, or forwarding messages in Outlook, duplicate recipient names may appear in the To, Cc, or Bcc fields. How can you quickly remove these duplicates? Kutools for Outlook’s Duplicate Names utility allows you to remove all duplicate recipients from the To, Cc, and Bcc fields with just one click.

Remove all duplicate recipients from To/Cc/Bcc fields in Outlook

In the Message window, Click Kutools > Duplicate Names:

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Remove all duplicate recipients from To/Cc/Bcc fields in Outlook

To remove all duplicate recipient names from the To/Cc/Bcc fields in a message window, click Kutools > Duplicate Names.

All duplicate recipients will be removed from the To, Cc, and Bcc fields immediately, as shown below.


  • The first instance of each duplicate will be retained.
  • This utility can also remove duplicate meeting attendees when creating a new meeting invitation.

Demo: remove all duplicate recipients from To/Cc/Bcc fields in Outlook

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