We help IT Professionals succeed at work.

Sometimes "Mailbox - user" shows in folder list, other times displays as "user name", without the "Mailbox -"

Bessemer-HD asked
Medium Priority
Last Modified: 2012-05-05
In Outlook 2003 and previous Office versions, sometimes you will see the name of a mailbox displayed as "Mailbox - John Doe", other times it's displayed simply as "John Doe", without the "Mailbox -". Why does this happen? Can this be changed?
Watch Question

Top Expert 2008

Greetings, Bessemer-HD !

When do you see the display the different display names?  If you click the To field in a new mail, Outlook autocomplete address feature is enabled.  The list comes from address book and nickname file.  So look in your address book and check if you have various names for the contact.

The name could be in nickname file, Outlook.nk2 file.  Search for *.NK2 and rename the file.  .NK2 file is located in
C:\Documents and Settings\<user>\Application Data\Microsoft\Outlook folder.

It is a hidden file. Go to any folder and select Tools > Folders Options > View. Check "Show hidden files and folders".  Click OK.

Best wishes!


Hi War1, thanks for the response. I see the different display names in my folder list, either in the Mail view or the traditional folder list view.
Top Expert 2008
Bessemer, you may want to reset the names in your contacts list that you see different display names.  Go to the particular contact address.  Copy the information. Delete the contact address.  Close Outlook. Open Outlook. Recreate the contact name.

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.