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  • Blog Post: 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...
  • Blog Post: OWA Forms Based Auth Logoff Changes in Exchange 2013 Cumulative Update 9 – And Good News for TMG Customers

    Update - 2/9/15 : Since publishing this blog we made a decision to push one aspect of this change to CU9 to allow some partners a little more time to adapt to this new behavior. The new signout.aspx code is still shipping in CU8, but we are not changing to the new logoff behavior, that is sending the...
  • Blog Post: OAB Improvements in Exchange 2013 Cumulative Update 7

    Note : Cumulative Update 7 (CU7) for Exchange Server 2013 will be released soon TM . Back in May , I discussed the changes we introduced in Exchange 2013 Cumulative Update 5. Specifically with CU5 and later, an OAB can only be assigned (or linked) to a single OAB generation mailbox. This architectural...
  • Blog Post: Come get your Calculator Updates!

    Today, we released updated versions of both the Exchange 2010 Server Role Requirements Calculator and the Exchange 2013 Server Role Requirements Calculator . The Exchange 2010 version is an incremental update and only includes minor bug fixes. You can view what changes have been made, or download the...
  • Blog Post: Outlook Connectivity with MAPI over HTTP

    Among the many new features delivered in Exchange 2013 SP1 is a new method of connectivity to Outlook we refer to as MAPI over HTTP (or MAPI/HTTP for short). We’ve seen a lot of interest about this new connection method and today we’ll give you a full explanation of what it is, what it provides...
  • Blog Post: The Preferred Architecture

    During my session at the recent Microsoft Exchange Conference (MEC), I revealed Microsoft’s preferred architecture (PA) for Exchange Server 2013. The PA is the Exchange Engineering Team’s prescriptive approach to what we believe is the optimum deployment architecture for Exchange 2013, and one that is...
  • Blog Post: Certificate Planning in Exchange 2013

    Now that we understand the load balancing and namespace planning principles and how clients connect in an Exchange 2013 environment that has Exchange 2007 and/or Exchange 2010 deployed, the proper certificates can be constructed and deployed as part of the upgrade process. Of course it goes without saying...
  • Blog Post: Client Connectivity in an Exchange 2013 Coexistence Environment

    This article is part 3 in a series that discusses namespace planning , load balancing principles , client connectivity, and certificate planning. Over the last several months, we have routinely fielded questions on how various clients connect to the infrastructure once Exchange 2013 is deployed. Our...
  • Blog Post: Load Balancing in Exchange 2013

    This article is part 2 in a series that discusses namespace planning , load balancing principles, client connectivity , and certificate planning. Load Balancing Unlike previous versions of Exchange, Exchange 2013 no longer requires session affinity at the load balancing layer. To understand...
  • Blog Post: Namespace Planning in Exchange 2013

    A while back we promised an article on namespace planning and load balancing principles with Exchange 2013. We’re finally going to fulfill that promise as a series of articles. The articles will span several topics, including namespace planning, load balancing , client connectivity coexistence , and...
  • Blog Post: GAL Photos in Exchange 2010 and Outlook 2010

    Over the years, displaying recipient photographs in the Global Address List (GAL) has been a frequently-requested feature, high on the wish lists of many Exchange folks. Particularly in large organizations or geographically dispersed teams, it's great to be able to put a face to a name for people you...
  • Blog Post: Secure Messaging with S/MIME and OWA on Exchange Server 2007 SP1

    S/MIME support for Exchange Outlook Web Access (OWA) was introduced in Exchange 2003. In Exchange 2007 SP1, we are adding S/MIME support back and making it more reliable and powerful. Below, is a short introduction to S/MIME and simple end-to-end steps for how to use S/MIME with OWA on Exchange Server...
  • Blog Post: EWS CAS to CAS Request Proxying

    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 to understand why it is there, why you want...
  • Blog Post: A script to troubleshoot issues with Exchange ActiveSync

    ActiveSyncReport script Download The Exchange support team relatively frequently receives cases where mobile devices using Exchange ActiveSync (EAS) protocol send too many requests to Exchange server resulting in a situation where server runs out of resources, effectively causing a ‘denial...
  • Blog Post: What’s new with Microsoft Remote Connectivity Analyzer? A lot!

    Have you ever gotten a call from someone you know whose Outlook client is having trouble connecting to their email server? Don’t you just wish you had a tool that you could send to them that would walk them through a connectivity test and provide a simple way for them to send the results back to you...
  • Blog Post: ExRCA: Now supporting 10 additional languages

    Last year, we announced the Exchange Remote Connectivity Analyzer and usage continues to grow as people become aware of this web site. Today, we are releasing a new version which will help us reach an even wider audience... We now support 10 additional languages! Here is the list of all the languages...
  • Blog Post: Using NTLM Outlook Anywhere Authentication through Forefront TMG and UAG

    The last in the series of papers I wrote in this general area has just been published and is available here . This one details the configuration you need when you want to have Outlook Anywhere use NTLM authentication when published through TMG or UAG. Why would you ever want to do this? Well, if your...
  • Blog Post: Patching the Multi-Role Server DAG

    One of the things about Exchange 2010 that many of my customers find very attractive (and I have to agree with them) is the idea of the multi-role or “all-in-one” DAG server. This means having all three of the core Exchange 2010 roles installed on all of the servers in the DAG – Mailbox, Hub Transport...
  • Blog Post: iPhone 2.0; Welcome to Exchange!

    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 that enable all sorts of devices to connect to Exchange...
  • Blog Post: Introducing MailTips

    Have you ever sent a really well thought out, important email, only to find out (through an automatic response) that the recipient is on vacation for two weeks? For most of us, this means either waiting two weeks for a response or emailing an alternate contact. For the recipient, it means dealing with...
  • Blog Post: Ambiguous URLs and their effect on Exchange 2010 to Exchange 2013 Migrations

    With the recent releases of Exchange Server 2013 RTM CU1 , Exchange 2013 sizing guidance , Exchange 2013 Server Role Requirements Calculator , and the updated Exchange 2013 Deployment Asistant , on-premises customers now have the tools you need to begin designing and performing migrations to Exchange...
  • Blog Post: Throttling Policy Associations in Exchange 2010 SP1

    Exchange 2010 SP1 introduces two new throttling cmdlets: get-ThrottlingPolicyAssociation and set-ThrottlingPolicyAssociation. In Exchange 2010 RTM, in order to determine which throttling policy was associated with a given user, you would use something like: Get-Mailbox JohnDoe | fl ThrottlingPolicy To...
  • Blog Post: UDP Notification Support Re-added to Exchange 2010

    I am very pleased to let you all know that in response to your feedback we are adding support for User Datagram Protocol (UDP) notification functionality back into Microsoft Exchange Server 2010. While Outlook 2010 is the best way to experience all that Exchange 2010 has to offer, you have been very...
  • Blog Post: RPC Client Access Cross-Site Connectivity Changes

    Nearly two years ago, I presented a session called High Availability Design Considerations at TechEd North America 2010. During my session I described the changes we were making around how MAPI connectivity should occur after mailbox moves and cross-site database *over events. Unfortunately, after I...
  • Blog Post: Removing a Feature From The Exchange Control Panel

    For various reasons, there are times when an administrator does not want a part of the ECP to be accessible by some users and they desire a features' tab or entry point to not be visible at all. The web.config file for the Exchange Control Panel (ECP) contains the requirements a logged in user must meet...