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  • 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 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: 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...
  • 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: Released: Exchange Server 2013 Service Pack 1

    Download What's new Release notes Exchange Server 2013 Service Pack 1 (SP1) is now available for download! Please make sure to read the release notes before installing SP1. The final build number for Exchange Server 2013 SP1 is 15.00.0847.032. SP1 has already been deployed to thousands of production...
  • Blog Post: Outlook 2013 profile might not update after mailbox is moved to Exchange 2013

    Update 3/18/2014: The fix for this issue has been released and is a part of March 11 2014 update for Outlook 2013. Please see the following KB article: http://support.microsoft.com/kb/2863911 . We wanted to make certain that Exchange admins are aware of an Outlook issue which may impact your plans to...
  • Blog Post: Exchange On-Premises TAP Program accepting nominations

    We are excited to announce that the Exchange On-Premises TAP Program is accepting nominations! The purpose of this post is to provide you with the opportunity to nominate your company for the Exchange On-Premises Technology Adoption Program (TAP) Program. Joining the Exchange On-Premises TAP Program...
  • Blog Post: Office 365 URL based filtering is just better and easier to sustain

    One of the requirements for properly integrating with Microsoft Office 365 is to ensure that your clients and (in some instances such as hybrid Exchange) servers have access to all of the proper endpoints. To achieve this, most customers simply allow their clients internet access and there is no outbound...
  • Blog Post: Released: Exchange 2013 Server Role Requirements Calculator Update

    Today we released v6.1 of the Exchange 2013 Server Role Requirements Calculator.  You can view what changes have been made, or download the update directly. Ross Smith IV Principal Program Manager Office 365 Customer Experience
  • Blog Post: Under The Hood: Exchange ActiveSync Mailbox Log Analysis – Part 2

    The previous post for Exchange ActiveSync mailbox log analysis gave an overview of the various commands a device may send. Now we want to dig just a little bit deeper and provide a way to link items within an EAS mailbox log to the items inside the mailbox. Unless verbose logging is enabled you do not...
  • Blog Post: Released: Microsoft Security Bulletin MS13-105 for Exchange

    Today the Exchange team released security bulletin MS13-105 . Updates are being made available for the following versions of Exchange Server: Exchange Server 2007 SP3 Exchange Server 2010 SP2 Exchange Server 2010 SP3 Exchange Server 2013 CU2 Exchange Server 2013 CU3 Customers who are not running one...
  • Blog Post: Litigation Hold and In-Place Hold in Exchange 2013 and Exchange Online

    In Exchange 2010 and Exchange Online, we introduced Litigation Hold to allow you to immutably preserve mailbox content to meet long term preservation and eDiscovery requirements. When a mailbox is placed on Litigation Hold, mailbox content is preserved indefinitely. Placing a mailbox on Litigation...
  • Blog Post: Responding to Managed Availability

    I’ve written a few blog posts now that get into the deep technical details of Managed Availability. I hope you’ve liked them, and I’m not about to stop! However, I’ve gotten a lot of feedback that we also need some simpler overview articles. Fortunately, we’ve just completed...
  • Blog Post: Common mailbox / folder sharing scenarios Guided Walkthroughs now available

    Exchange and Outlook have, for years, been great collaboration platforms, where our customers could share information easily with others. One of the things that came to light when a lot of our customers adopted Office 365 , is that many often have trouble matching their business needs to actual features...
  • Blog Post: Exchange 2013 database schema updates

    Recently, we have seen some questions about what the Update-DatabaseSchema cmdlet in Exchange 2013 is about. So I thought I would share some additional information on the subject. The Update-DatabaseSchema cmdlet is a part of the infrastructure that we’ve built into Exchange 2013 to safely upgrade database...
  • Blog Post: In Deployment: Directory Based Edge Blocking for Exchange Online Protection

    What is Directory Based Edge Blocking? The Directory Based Edge Blocking (DBEB) feature in Exchange Online Protection (EOP) lets you reject messages for invalid recipients at the service network perimeter. DBEB lets admins add mail-enabled recipients to Azure Active Directory and block all messages...
  • Blog Post: MEC Check: Are You Registered?

    Just 8 ½ weeks until the Microsoft Exchange Conference 2014 kicks off in Austin, Texas! We’re putting the finishing touches on sessions, speakers, content, parties, and all of those wonderful and quirky touches that make MEC different from any other conference. If you haven’t registered...