About Dejan Foro

Dejan Foro is founder and CEO of Exchangemaster GmbH. He lives in Zurich, Switzerland and is a dedicated specialist, with 27 years of professional work experience in IT. Before starting Exchangemaster GmbH he worked as a system engineer and project manager with customers of all sizes and across many industries: From small ISV startups and a NGO humanitarian organizations up to largest international corporations like Stryker, Swisscom, British Telecom and Nyrstar. He spent his entire career delivering Microsoft based infrastructure solutions with main focus on Active Directory and Exchange. During those years, he collected a valuable work experience on 8 Exchange generations (2019, 2016, 2013, 2010, 2007, 2003, 2000 and 5.5) and has delivered services to a user base of more than 3.2 million mailboxes in on-premise, hybrid and Office 365 deployments. Beside working on customer projects, he is a regular speaker and expert at Microsoft conferences and user groups. As a Microsoft Certified Trainer he also teaches Microsoft Official Curriculum courses to technical professionals around Europe. For his work he has received numerous awards. In 2005 he was the first member to be elected into the MCP Hall of Fame by Windows IT Pro Magazine readers choice (as 1 of 6 worldwide). From 2005-2017, Dejan has been awarded by Microsoft Corporation with the yearly Microsoft Most Valuable Professional award in area of Exchange for 12 years in a row (one of approximately 100 worldwide and, at the time, the only 1 such in Switzerland).

FAQ 000180 – How to set Microsoft Teams Room Device to use internal NTP server

This article applies to: Microsoft Teams Room devices PROBLEM The Microsoft Teams Room devices are configured to use time.windows.com as the default time synchronization source. However many companies prefer not to allow external NTP access to time.windows.com, but prefer to use their own internal NTP server. SOLUTION To configure your Microsoft Teams Room system

FAQ 000171 – Unable to configure Exchange partner application – error 503 server unavailable

This article applies to: Windows Server 2012 R2, Exchange 2016 PROBLEM When you run the ConfigureEnterprisePartnerApplication.ps1 on your Exchange server in order to configure application partnership with another server (typically Skype for Business or SharePoint) you receive the following error message: Cannot acquire auth metadata document from 'https://sfbpool.company.com/metadata/json/1'. Error: The remote server returned an

FAQ 000170 – How to enable external applications to access your Exchange data by using Application Impersonation

This article applies to: Exchange 2010, Exchange 2013, Exchange 2016, Exchange 2019, Exchange Online In this article I will demonstrate how to configure application impersonation for an application service account by using PowerShell. This is typically used to give external applications access to your mailboxes. For example, you have an application that needs access

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