• Estimated time to complete each procedure: 5 minutes.
  
  
• You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Offline address books" entry in the Email Address and Address Book Permissions topic.
  
  
• After you remove an OAB that's linked to a user or to a mailbox database, the recipient will download the default OAB until you assign a new OAB for that user. If you remove the default OAB, you must assign a different OAB as the default OAB. For instructions about how to change the default OAB, see Change the Default Offline Address Book.
  
  
• You can’t use the Exchange Administration Center (EAC) to perform this procedure. You must use the Shell.
  
  
• For information about keyboard shortcuts that may apply to the procedures in this topic, see Keyboard Shortcuts in the Exchange Admin Center.
  
  

Tip:
Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection

This example removes an OAB named My OAB.

	Copy Code
Remove-OfflineAddressBook -Identity "My OAB"

Type Y to confirm that you want to remove the OAB, and then press ENTER.

For detailed syntax and parameter information, see Remove-OfflineAddressBook.