Some of my windows 2016 server failed to update KB4057142 So here some steps i took to solve it Reboot the server Stop Background Intelligent Transfer Service and Windows Update service. rename the folder C:\Windows\SoftwareDistribution Start the Background Intelligent Transfer Service and Windows Update service Enabled "give me updates for other Microsoft Products" under Windows Updates -> advanced options Search for updates again. let the other products update first. KB4057142 will fail again but the server needs to reboot again. Try updates the next day to finish update KB4057142 One server still failed so i downloaded the KB from Microsoft catalog site here [...]
Here some great tools/scripts for message tracking on your exchange server (works for Exchange 2013 and 2016) Exchange 2013/2016 Exchange management shell command: Get-MessageTrackingLog -ResultSize Unlimited -Start "Jan 17 2018” | Out-GridView Microsoft Powershell script: Exchange 2013 Message Tracking Log GUI here (also works on Exchange 2016) Make sure you turn on Message tracking log on your Exchange server ofcourse. open ECP -> servers -> servers. choose your mailbox server and edit. Under transport log enable "Enable message tracking log"