Thomas Stensitzki is a leading technology consultant focusing on the Microsoft messaging and collaboration technologies and the owner of Granikos GmbH & Co. KG. He is an MVP for Office Apps & Services since 2018. Thomas is an MCT Regional Lead for Germany and delivers Microsoft Learning training courses for Office 365, Microsoft Teams, and Exchange Server. He holds Master certifications as Microsoft Certified Solutions Master Messaging and as Microsoft Certified Master for Exchange Server 2010. His experience makes him a subject matter expert for any messaging topic related to Microsoft Exchange, Exchange Online, Office 365, and Hybrid configurations.