Exchange ActiveSync is enabled by default when you install … Exchange ActiveSync is an Exchange synchronization protocol.
iOS device – The Connection to the server Failed.
Get-CASMailbox -Identity MailboxName| fl
Set-CASMailbox MailboxName -ActiveSyncBlockedDeviceIDs $null
–
Now the device will be allowed to the Exchange server.
Root Cause – I suspect we had active sync policy pushed from Airwatch (Mobile device management solution which applied incorrectly. Not 100 % sure .
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