About Dejan Foro

Dejan Foro is founder and CEO of Exchangemaster GmbH. He lives in Zurich, Switzerland and is a dedicated specialist, with 32 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 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

FAQ 000167 – How to use PowerShell to export configuration of Exchange server receive connectors

This article applies to: Exchange 2010, Exchange 2013, Exchange 2016, Exchange 2019 If you need to troubleshoot why an application is unable to send e-mails through your Exchange Server, one of the things you will have to do, is to check your receive connectors. Often you will find numerous connectors configured (sometimes even more

FAQ 000166 – Quest Coexistance Manager unable to connect to Exchange Server – Secure Channel Failure

This article applies to: Quest Coexistence Manager, Exchange When you try to establish connection from Quest Coexistence Manager machine to an Exchange server you receive the following error: Unable to contact the Exchange URL. Please verify the host is configured. SecureChannelFailure. CAUSE This will typically occur if the TLS security protocol is not enabled

FAQ 000164 – How to fix Schannel error 36874

This article applies to: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2,  Windows Server 2016 Exchange 2013, Exchange 2016 PROBLEM You experience connectivity issues in Outlook or 3rd party applications when connecting to your Exchange server. In Windows System Event Log on the Exchange server machine, you see

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