In Exchange Server 2007 SP1, the EWS team added a new feature called EWS Request Proxying.  It is sometimes also referred to as EWS Proxy or HTTP Proxy.  Not much has been said about this feature, but if you care about performance, it is important Read More

If you've not heard; Apple released iPhone 2.0 today which includes a software update to the existing iPhones in the market (yes, we mentioned it when it was announced as well).  We're thrilled to add them to the family of Exchange ActiveSync licensees Read More

Introduction We have been working on a problem that surfaced with the release of Exchange 2007 Rollup 5. A number of customers reported that some of their Exchange 2007 managed services did not start automatically after Rollup application, however they Read More

Performance analysis and troubleshooting can be a very complex and daunting area with Exchange Server. Being able to quickly and accurately identify and resolve issues requires a thorough understanding of the most interesting and important performance Read More

It's been a while since I've been thinking of writing a blog post about various aspects of Outlook Anywhere that people have been asking questions about. Somehow, I keep getting myself caught up in one thing or another, and have consequently delayed Read More

I wanted to post a follow-up to Cathy's documentation announcement with a bit more information on RPC Client Throttling. With the release of Microsoft Exchange Server 2007, a new feature known as RPC Client Throttling is available to administrators to Read More

Hi! This is my first post to the Exchange Team Blog - hope this is of use! My name is Robert Gillies, and I'm a Senior Consultant in the Federal Civilian Practice of Microsoft Consulting Services. One of my recent projects for one of my customers had Read More

In the past, if you wished to use S/MIME for e-mail encryption with an external recipient, you would add the recipient to your Contacts folder. This was typically done by having the recipient send you a digitally signed item and then right click on the Read More

A few customers exploring the new Outlook Web Access customization features in Exchange 2007 SP1 have asked why when they add a button to the main OWA navigation bar does it appear as a small button only, or commonly stating that the text is "missing". Read More

Based on the feedback on my original post on Cross Forest Exchange Impersonation in Exchange 2007 Service Pack 1, I wanted to provide you with some "real life" examples to help you actually implement this. To dig into cross forest Exchange Read More

With Exchange Server 2007 Service Pack 1 you can now manage rules by logging into Outlook Web Access. The goal of the new rules interface is to provide Outlook users with a familiar experience for managing your rules. In the OWA options section is where Read More

EDIT 5/30/2008: The content of this article has since been published in our official Exchange documentation. Please go here for the most updated version. As part of a broader investigation, we measured the network costs between Enterprise email clients Read More

In Exchange 2007, the Exchange Impersonation feature was introduced in Exchange Web Services to allow one account (the service account) to make web service calls on behalf of another account (the Act-As account).  Rather than the "delegate Read More

Disclaimer OK, before you get too far into this posting I just want to let you know that most of this is about why different organizations might choose to go with Exchange to manage their mobile devices and other organizations might use System Center Read More

Before you can install Exchange Server 2007 SP1 on a Windows Server 2008 there are varying prerequisites that need to be installed, depending on the Exchange 2007 Server role you plan on installing. Details on how to install those prerequisites manually Read More