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certificates exchange online Exchange Server Kemp SSL

Test Connectivity Website and TLS 1.2

An excellent resource for Microsoft Exchange Server and Exchange Online administrators and consultants is the Remote Test Connectivity website at http://exrca.com or https://testconnectivity.microsoft.com/. Here I am going to document an error that indicated that the Exchange Server (in this case) was not working, but we could see that the phone was connecting fine to the […]

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EAS Exchange Server Kemp Load Master Zantas

Capax Zantas EAS EWS 501 Errors

Whilst load balancing Exchange 2013 with a Capax Zantas EAS deployment in place I was reminded of an issue I experienced a few years ago with a Kemp load balancer. The EAS app for OWA was failing with various errors such as: Communication with service failed. The service might be down or misconfigured. Error code: […]

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Exchange Web Services (EWS) and 501 Error

As is common with a lot that I write in this blog, it is based on noting down the answers to stuff I could not find online. For this issue, I did find something online by Michael Van “Hybrid”, but finding it was the challenge. So rather than detailing the issue and the reason (you […]