hi

I have 3 Exchange admins

I need script to audit these 3 admins and what is the activity they are doing daily and send me email with a report with theses activites .

Thanks

This should apply to 2013 as well
http://blogs.technet.com/b/heyscriptingguy/archive/2012/01/25/use-powershell-to-audit-changes-made-to-exchange-server-2010.aspx

You could create a scheduled task and have it sent to you. You can search on how to do that.

You need to enable auditing to track admin users activities and get all critical changes alerts in exchange 2013. I would like to refer you on this very informative blog that is applicable on Exchange 2013 too. It audit all the activities into real time of admins, users as well and alerts instantly by sending customized email notification : https://gallery.technet.microsoft.com/Enabling-Exchange-2010-368786d3