MVP Office Servers and ServicesMy name is Thomas Stensitzki and work as a principal technology consultant focusing on the Microsoft messaging and collaboration technologies. I am the owner of Granikos GmbH & Co. KG. My company provides enterprise consulting and training services for Microsoft Exchange, Office 365, Hybrid Configurations, and Modern Collaboration.


Since April 2018 I am a MVP for Office Apps & Services.

I hold Master certifications as Microsoft Certified Solutions Master Messaging and as Microsoft Certified Master for Exchange Server 2010. This makes me a subject matter expert for any messaging topic related to Microsoft Exchange, Exchange Online, Microsoft 365, and hybrid configurations. When not working as a consultant I teach Microsoft technology courses as a Microsoft Certified Trainer.


I am an MCT Regional Lead, supporting the MCT community in Germany, and working closely with Microsft on training and certification topics.


In February 2019 my first book "Exchange Server 2019 - Das Handbuch für Administratoren" was published. 




Manage Windows Services for Exchange Cumulative Updates

Services of third-party software solutions often interfere with installing a new Exchange Server cumulative update, because these services have a file lock active.  To avoid any issues ...

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Create Test Users in Active Directory

You sometimes need some (or even many) test user objects in Active Directory. This script helps you create any number of test users in your Active Directory domain, which you can easily enable for ...

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Exchange Server 2019 - Das Handbuch für Administratoren

Exchange Server 2019 - Das Handbuch für Administratoren

Amazon Book Edition


Exchange Öffentliche Ordner - Migration verständlich erklärt

Exchange Öffentliche Ordner - Migration verständlich erklärt

Amazon - Paperback-Edition
Amazon  - Kindle-Edition


Microsoft 365 Business Migration und

Microsoft 365 Business Migration und Konfiguration

Gumroad - PDF-Edition
Amazon - Kindle-Edition

Microsoft 365 Business Migration and Configuration

Cover - The Microsoft 365 Business Migration and Configuration Guide

Gumroad - PDF-Edition
Amazon - Kindle-Edition 

Thomas' Tech Talk - YouTube Channel (DE)

Thomas' Tech Talk 1 Thomas' Tech Talk 2

Thomas' Tech Talk 3 Thomas' Tech Talk 4

Thomas' Tech Talk 5Thomas' Tech Talk 6

Thomas' Tech Talk 7Thomas' Tech Talk 8

Thomas' Tech Talk 9Thomas' Tech Talk 10



 Website-Boosting: Geschäfte in Nullkommanichts
Website-Boosting: Geschäfte in Nullkommanichts
Webstandards Magazin
March 2011

Geschwingkeit ist keine Hexerei

Website Boosting Magazine
November 2010
White Paper Beschleunigung von SharePoint Sever 2010
White Paper
January 20, 2011
Site Optimizing: Wie lernende Algorithmen Ihrer Webseite Beine machen
Website Boosting Magazine
February 2011


User Group Meetups

  • Exchange Server User Group DACH

Microsoft Certified Trainer (MCT)
Microsoft Certified Solutions Expert: Server Infrastructure (MCSE)
Microsoft Certified Solutions Master: Messaging (MCSM)
Microsoft Certified Master: Exchange Server 2010 (MCM)

Microsoft 365 Certified: Enterprise Administrator Expert   Microsoft 365 Certified: Messaging Administrator Associate Microsoft 365 Certified: Teams Administrator Associate   Microsoft 365 Certified: Teamwork Administrator Associate
Microsoft Certified Trainer 2020-2021 Microsoft Certified Trainer 2019-2020 Microsoft Certified Trainer 2018-2019 Microsoft Certified Trainer 2017-2018
MCSA: WIndows Server 2016 MCSE Productivity | 2017 MCSE Cloud Platform | 2017 MCSA Office 365
MCSA Windows Server 2012
MCSE Productivity | 2016  MCSE Cloud Platform and Infrastructure   


Angaben gemäß § 5 TMG:

Thomas Stensitzki
Parkhofstrasse 19A
41836 Hückelhoven



Telefon: +49 2433 95247 80

Verantwortlich für den Inhalt nach § 55 Abs. 2 RStV

Thomas Stensitzki
Parkhofstrasse 19A
D-41836 Hückelhoven

Gemäß § 28 BDSG wird jeglicher kommerziellen Verwendung und Weitergabe der Daten widersprochen.