The importance of –2147481594 in Exchange Hybrid with Office 365

  You have setup a hybrid between on-premises Microsoft Exchange and Office 365 (Exchange Online), but when you try and move a mailbox from on-premises to Office 365 it tells you that the mailbox already exists. What it is telling you is that the user has a mailbox on-premises and one in Office 365 (Exchange…

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DirSync Configuration Fails with Unknown Error 0x80005000

During the configuration step of Azure Active Directory Sync (DirSync), you may encounter this error. This occurs when there is a connection issue between the DirSync server and a Domain Controller (DC) in the environment. During the configuration step, DirSync attempts to contact each domain in the AD Forest, and then attempts to grants rights…

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DirSync Installation Doesn’t Finish on Windows Server 2012 R2

I recently had the pleasure of installing Azure Active Directory Sync (DirSync) on a Windows Server 2012 R2 server. Usually a pretty straight forward installation process, but something that caused an issue on Windows Server 2012 R2. First off, I don’t believe, at the time of writing this article, it is a supported configuration. Reading…

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