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  • Blog Post: Be the first to learn what’s next for Exchange and Office 365 at Microsoft Ignite - Full session list now available

    This morning we released the complete list of sessions offered at Microsoft Ignite , including the full list of Exchange sessions . Ignite is the premier event for the Exchange community, bringing together the people who build Exchange and those who work with it every day. If you are one of the many...
  • Blog Post: Managed Availability Responders

    Responders are the final critical part of Managed Availability. Recall that Probes are how Monitors obtain accurate information about the experience your users are receiving. Responders are what the Monitors use to attempt to fix the situation. Once they pass throttling, they launch a recovery action...
  • Blog Post: Exchange On-Premises TAP accepting nominations (again)

    It has been almost exactly two years now that we had a post about our Exchange On-Premises TAP program and how you can (and why you would want to) nominate yourself for the program. Well, the time is right again, and we would like to re-invite you to apply and we will consider you for the program. Please...
  • Blog Post: Exchange 2013 and Exchange 2010 Coexistence with Kerberos Authentication

    In April 2011, I documented our recommendation around utilizing Kerberos authentication for MAPI clients to address scalability limits with NTLM authentication. The solution leverages deploying an Alternate Service Account (ASA) credential so that domain-joined and domain-connected Outlook clients, as...
  • 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: Get the inside scoop on Exchange at Microsoft Ignite

    This morning we published the first look at the Ignite session catalog providing you a better view of what to expect at Ignite . Ignite brings together the Exchange Conference with TechEd and other Microsoft technology events. By attending Ignite, you’ll have access to a broad set of content on Microsoft...
  • 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: Using an Azure VM as a DAG Witness Server

    I’m happy to announce support for use of an Azure virtual machine as an Exchange 2013 Database Availability Group witness server. Automatic datacenter failover in Exchange 2013 requires three physical sites, but many of our customers with stretched DAGs only have two physical sites deployed today. By...
  • Blog Post: Concerning Trends Discovered During Several Critical Escalations

    Over the last several months, I have been involved in several critical customer escalations (what we refer to as critsits) for Exchange 2010 and Exchange 2013. As a result of my involvement, I have noticed several common themes and trends. The intent of this blog post is to describe some of these common...
  • Blog Post: On-Premises Legacy Public Folder Coexistence for Exchange 2013 Cumulative Update 7 and Beyond

    What are we talking about today? In Exchange 2013 CU5 (yes 5, V, cinco, fem, and cinque) we started implementing changes to how Legacy Public Folder endpoint discovery will be performed by Outlook (for Windows) in the future. This work continues behind the scenes and will be completed with the release...
  • 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: Introducing Microsoft Ignite – meet us in Chicago

    This morning on The Official Microsoft Blog , we revealed more details about our unified technology event for event for enterprises in May. The event will be known as Microsoft Ignite. If you are one of the many MEC conference alumni this is the conference for you. Microsoft Ignite is for Exchange customers...
  • Blog Post: Those pesky lazy indices

    In Exchange 2013 there are indices within a given mailbox database. The indices are created, maintained, and deleted by the Information Store Worker Process associated with a given database. These indices are not to be confused with the Exchange content indexes that are built via the Search Foundation...
  • Blog Post: Protecting against Rogue Administrators

    Occasionally I am asked the following question – how can I protect the messaging environment from a rogue administrator? There are essentially two concerns being asked in this question: How do I protect the data from being deleted by a rogue administrator? How do I protect the data from being accessed...
  • Blog Post: Site Resilience Impact on Availability

    This article continues the analysis I started in my previous article, DAG: beyond the “A” . We all understand that a good technology solution must have high levels of availability, and that simplicity and redundancy are the two major factors that drive solution availability. More specifically...
  • Blog Post: OAB Improvements in Exchange 2013 Cumulative Update 5

    Cumulative Update 5 (CU5) for Exchange Server 2013 will be released soon TM , but before that happens, I wanted to make you aware of a behavior change in the Offline Address Book that is shipping in CU5. Hopefully this information will aid you in your planning, testing, and deployment of CU5. The Offline...
  • 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: Released: PelNet

    download With the huge scale environment I currently work in my team has had some difficulty when it comes to validating customer transport changes, specifically when adding new send connectors or new smart hosts. The same goes for troubleshooting mail flow….you know…whip out good...
  • 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...
  • 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: Upgrade to Office Configuration Analyzer Tool (OffCAT) version 1.2

    Just over a year ago on March 8, 2013 the first version of OffCAT was released. In the 12 months that followed, the OffCAT team released a new version (v1.1), published numerous rule file updates that included over 260 new detection rules and over 250 bug fixes/feature improvement. And now with over...
  • Blog Post: This mailbox database contains one or more mailboxes…

    Let’s say you are in process of removing the last copy of a mailbox database or uninstalling an Exchange server and run into the following error message: “This mailbox database contains one or more mailboxes…” You check again and again but can’t find a mailbox on the server being uninstalled or the database...
  • 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: Exchange 2003 migration toolkit

    Microsoft Exchange Server 2003 entered the market on September 28, 2003 and continued the great messaging and collaboration experience that Microsoft Exchange Server had provided in previous releases. As we approach April 8, 2014, we want to inform users of Microsoft Exchange Server 2003 of the opportunities...