Here is an Exchange Shell script which is helpful in determining mailbox sizes. Queries all user objects within an OU so it is nifty for producing statistics, especially for disabled users. $mailboxes =  Get-mailbox –OrganizationalUnit “domain.local/CompanyName/Disabled Users” foreach ($mailbox in $mailboxes) {     $name = $mailbox.Name     Get-MailboxStatistics $name | Sort -Property TotalItemSize | Select-Object … Continue reading Exchange 2013 – Get Mailbox Size Statistics