Client Connectivity in an Exchange 2016 Coexistence Environment with Mixed Exchange Versions

Our goal with this article is to articulate the various connectivity scenarios you may encounter in your Exchange 2016 designs. To that end, this article will begin with a walk through of a deployment that consists of Exchange 2013 and Exchange 2010 in a multi-site architecture and show how the connectivity changes with the introduction…

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Client Connectivity in an Exchange 2016 Coexistence Environment with Exchange 2013

Our goal with this article is to articulate the various connectivity scenarios you may encounter in your Exchange 2016 designs. To that end, this article will begin with a walk through of a deployment that consists of Exchange 2013 in a multi-site architecture and show how the connectivity changes with the introduction of Exchange 2016….

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Load Balancing in Exchange 2016

Like Exchange 2013, Exchange 2016 does not require session affinity at the load balancing layer. To understand this statement better, and see how this impacts your designs, we need to look at how MBX2016 functions. From a protocol perspective, the following will happen: A client resolves the namespace to a load balanced virtual IP address….

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Namespace Planning in Exchange 2016

If you are like the vast majority of our customers, you already have some version(s) of Exchange deployed in your environment. Depending on the version, you may have different namespace requirements today. Exchange 2010 Exchange 2010 leverages the Autodiscover service for enabling client profile changes, so that namespace exists. Exchange 2010 introduced additional namespace requirements,…

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Configuring Multiple OWA/ECP Virtual Directories on the Exchange 2013 Client Access Server Role

We have previously published guidance for setting up multiple OWA and ECP virtual directories for Exchange Server 2007 and 2010, and now it is the turn of Exchange Server 2013. The eagle eyed amongst you may spot some copy and paste from previous blogs on the subject, and well frankly, you’d be correct. The reasons…


Life in a Post TMG World – Is It As Scary As You Think?

Let’s start this post about Exchange with a common question: Now that Microsoft has stopped selling TMG, should I rip it out and find something else to publish Exchange with? I have occasionally tried to answer this question with an analogy. Let’s try it. My car (let’s call it Threat Management Gateway, or TMG for…


Introducing: Log Parser Studio

Download Anyone who regularly uses Log Parser 2.2 knows just how useful and powerful it can be for obtaining valuable information from IIS (Internet Information Server) and other logs. In addition, adding the power of SQL allows explicit searching of gigabytes of logs returning only the data that is needed while filtering out the noise….


Ask The Exchange Perf Guy: How do large item counts & IMAP clients affect CAS CPU in Exchange 2007?

We recently updated our maximum item count guidance for Exchange 2007 when IMAP clients are being used. As a result, I’ve gotten a number of questions about the reasons for the change. Hopefully this post will help to answer those questions. In Exchange 2007, the product went through some major architectural changes that resulted in…


Why all Exchange ActiveSync experiences aren’t the same… and how to know what you’re getting

One of the most frequent questions I get as the Product Manager for Exchange ActiveSync (EAS) is for a list of EAS-enabled devices customers can use for mobile email and what functionality they support. This is often a difficult thing to provide since Microsoft licenses patents (which are Microsoft’s Intellectual Property) to EAS licensees. Along…