Are Windows Server 2016 supported by Windows Defender Advanced Threat Protection ?

https://social.technet.microsoft.com/Forums/en-US/e9855896-8784-435e-a4b3-f251db5f0c49/are-windows-server-2016-supported-by-windows-defender-advanced-threat-protection-?forum=WindowsDefenderATPPreview

No. At this time Windows Defender ATP supports Windows client only