NonExistentMailboxException can simply mean that the mailbox in an inconsistent state

Here’s an issue that’s actually very easy to investigate and fix, but might get you puzzled if you are not looking in the right place. The symptoms were that several users were suddenly unable to get free/busy information, configure OOO, get MailTips, etc. Autodiscover was failing with 401 error; trying to …

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You can now hide group membership for Modern groups in Office 365!

You will need to use PowerShell to enable the setting, the cmdlet is: It’s a switch parameter, so you shouldn’t leave any space in between, or you can simply run it as:   The cmdlet works against both Private and Public groups, and here is a comparison on how the …

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Lync online federation issue in Hybrid scenarios

​Recently, one of our customers run into a strange issue with Lync Online. They were simply unable to see the presence info for contacts in the HP.com domain, or initiate conversations with them. On the other side of the line, everything worked OK. Here’s the interesting bit though: the issue …

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First look at Administrative Units for Office 365 and WAAD management

The Administrative Units feature was first announced last month, over at the AD Team Blog.​ In a nutshell, it allows you to group WAAD objects in containers, called Administrative Units, so that you can later delegate access to specific person to perform administrative tasks on said users. This has been …

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