VERIFIED SOLUTION i

Learn to know support of EngageOne Digital Delivery with Windows Server 2016

EngageOne Digital Delivery version 2.1.1 and earlier on, do not support Windows Server 2016. Windows Server 2016 support will be available in E-messaging version 2.3, release due in November 2017. However v2.3 will only be certified with Tomcat 8 and not with any other web application server.
UPDATED:  July 25, 2017