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 error: (503) Server unavailable.
When you attempt to open the mentioned URL via browser, you are able to open it and you receive the configuration data:
CAUSE
The most usual cause for this error is wrong proxy configuration. Exchange server does not take the proxy configuration from the IE browser. This setting can be configured in 2 places: Windows server OS or the Exchange itself.
SOLUTION
Windows proxy settings:
Exchange will by default take over this value for proxy (unless proxy is explicitly defined in Exchange itself)
To see current proxy configuration in Windows, open the command prompt and type the following command:
To remove the proxy settings for direct access you can use the following command:
To use the same settings as defined in Internet Explorer web browser:
To set correct proxy and at the same time exclude local domain:
Note: The proxy port number is usually 8080, but can be different in your environment.
Exchange Proxy Settings
Exchange will by default take the proxy value from the Windows OS (as described above). If you want to configure proxy settings for Exchange server application only you can do that via Exchange PowerShell:
In order to see the current proxy configuration on all your Exchange servers, use the following PowerShell command:
To remove the proxy configuration from all your Exchange Servers:
He lives in Zurich, Switzerland and is a dedicated specialist, with 30 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).
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