Exchange Online duplicate mailbox

How to resolve duplicate mailboxes in a Hybrid Exchange scenario?

It often happens that companies set up Office365 and then use it alongside the actual Exchange OnPremise infrastructure. For testing purposes or even partially productive. But when it comes to the hybrid scenario and the migration of the local mailboxes, the nasty surprise awaits. The affected user cannot be migrated because a mailbox already exists in the cloud for the same user. It is even more annoying if there is already data in the cloud mailbox. The only workaround here is usually the .pst export.

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Microsoft Teams and DNS

Those entering the world of Microsoft UC solutions with Teams are not familiar with the following DNS entries. Those coming to Microsoft Teams from Lync or Skype for Business Server know them very well.

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Are profile cards in OWA a compliance issue?

When you regularly talk to works councils and data protection officers about Microsoft 365, you always come across some pretty exciting topics. For me, that always means researching and considering a strategy. Now I’ve stumbled across a topic again that I hadn’t thought about at all. In the Outlook Web App (OWA), there are so-called profile cards that could apparently be a compliance issue, if it makes it one. Let’s take a look.

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