Script Download:OSCGetOldMailbox(PowerShell).ziphttp://gallery.technet.microsoft.com/scriptcenter/Get-the-mailbox-created-14d6d3bc/
IT Administrators may care about the creation date of mailbox. This script is good for admins to check the mailbox creation date.
You can find more All-In-One Script Framework script samples at http://aka.ms/onescriptingallery