New message receipients listed for TO field

[Hall]

When creating a new email message, the TO field (like CC and BCC) provides a
drop down list of previously used addressed as you enter the letters.

Where is this list kept? Can I clean it up and remove some/all entries?

 

[Noel All]

To remove individual entries then highlight them as they pop up and delete,
to clear the list entirely then close Outlook and delete a file with a *.NK2
extension that usually kept in your user profile.