Hello experts,

We have a Windows 2008 R2 server, we didn't enable recycle feature on it before and we don't have any backup. Some admin has accidentally deleted few usernames. Those users have Exchange 2010 mailboxes. 

Is there any way to restore those deleted users? If not, how to create new users and link them to the original user mailboxes? 

• Moved by Jason Johnston [MSFT]Microsoft employee 20 hours 28 minutes ago Not a development question.

Hi,

Agree with MAS. You need to restore the deleted user account first, you can look at the following article. If you can't restore them, you need to creat new account.

https://technet.microsoft.com/en-us/library/dd379509(v=ws.10).aspx

Hope this is helpful to you.

Best regards,