How to get all users in Active directory and Exchange using PowerShell

When we are using Exchange PowerShell and we want to retrieve all mailboxes we can use

Get-mailbox –resultsize unlimited otherwise you will get only 10000 mailboxes.

PS C:\> Get-Mailbox -ResultSize Unlimited

Name Alias Database ProhibitSendQuota ExternalDirectoryObjectId

—- —- ——- —————– ———————

If you want to filter the query you can use

PS C:\> Get-Mailbox | ?{$_.Office -eq ‘US’}

The question mark stands for “where-object” and it’s a way to short the query.

For Active Directory is a quite different, if you want to retrieve all users you have to use

Get-AdUser –Filter * -Properties *

If you want to filter the query you can use

Get-AdUser –Filter * -Properties Department | where-object {$_.Department –eq “IT”}

In the same way as before, you can use ? also

Get-AdUser –Filter * -Properties Department | ?{$_.Department –eq “IT”}