Using Nexus 6p with Android 7.0. Attempting to configure the app and the Initialization failed. ActiveSync permissions have been reviewed as correct.
Result
Configuration Failed
Log
Setting Trust Any Server Cert.Server is Microsoft-IIS/7.5
ActiveSync was found
ActiveSync Version :Versions:Microsoft-IIS/7.5,1.0,2.0,2.1,2.5,12.0,12.1
Trying activesync protocol 121...
ActiveSync provisioning returns HTTP:0
Error provisioning ActiveSync: Policy status is 0
Trying activesync protocol 2.5...
ActiveSync provisioning returns HTTP:0
Error provisioning ActiveSync: Policy status is 0