Sunday , August 2 2020

Your device won’t be able to synchronize with the server via Exchange ActiveSync because of an access policy defined on the server

Exchange ActiveSync is enabled by default when you install … Exchange ActiveSync is an Exchange synchronization protocol.

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iOS device – The Connection to the server Failed.

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Get-CASMailbox -Identity MailboxName| fl

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Set-CASMailbox MailboxName -ActiveSyncBlockedDeviceIDs $null

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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 .

About Satheshwaran Manoharan

Satheshwaran Manoharan is an Microsoft Office Server and Services MVP , Publisher of Azure365pro.com. Specialized in Office365 / Microsoft Exchange / Virtualization , Sathesh is an Messaging Expert supporting/Designing/Deploying many medium size businesses to large enterprises when it comes to Corporate messaging and Virtualization Infrastructure

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