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  • Blog Post: How to Configure S/MIME in Office 365

    S/MIME in Office 365 S/MIME (Secure/Multipurpose Internet Mail Extensions) is a standard for public key encryption and digital signing of MIME data. Configuring S/MIME in Office 365 is a slightly different procedure than configuring S/MIME on-premises. This blog is for people who want to move from on...
  • Blog Post: Exchange releases: December 2014

    Editor's Note : Updates added below for important information related to Exchange Server 2010 SP3 Update Rollup 8. The Exchange team is announcing today a number of releases. Today’s releases include updates for Exchange Server 2013, 2010, and 2007. The following packages are now available on the...
  • Blog Post: November Exchange Releases delayed until December

    We know that many of you are anxiously awaiting the release of our quarterly Exchange updates planned for November. Earlier today the Exchange Team decided to hold the release of these packages until December. We made this decision to provide more time to resolve a late breaking issue in the Installer...
  • 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: Be aware: October 26 2014 Russian time zone changes and Exchange

    We wanted to give you a heads up that depending on the version of Exchange you are running, there might be some impact to either names of time zones that are changing on October 26, or the way that actual meetings are displayed in affected time zones. Customers using our newer versions of Exchange, 2010...
  • 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: Keep your Federation Trust up-to-date

    Microsoft periodically refreshes certificates in Office 365 as part of our effort to maintain a highly available and secure environment. On September 23, 2014, we are making a certificate change on our Microsoft Federation Gateway that could affect some customers as detailed in knowledge base article...
  • Blog Post: Public Folder Updates in Exchange 2013 CU6: Improving Scale and More

    Note: Some of the documentation referenced may not be fully available at the time of publishing of this post. Exchange Server 2013 Cumulative Update 6 (CU6) was released today and provides several important updates for modern Public Folders. This blog post introduces you to the updates delivered in...
  • Blog Post: Released: Cumulative Update 6 for Exchange Server 2013

    Note: We have learned that customers using Exchange Server 2013 and Exchange Server 2007 co-existence can experience an issue causing Exchange Server 2013 CU6 databases to failover. Please refer to KB2997209 for the specific scenario impacted. The Exchange team is announcing today the availability...
  • Blog Post: Released: PelNet v2.0

    download Update : On August 25, 2014, the pelnet.ps1 script was updated to fix a minor bug. EHLO Exchange community, It seems that PelNet has been well received and I’ve been receiving requests to add much wanted functionality to PelNet. So this article is a quick update on some of the cool new features...
  • Blog Post: Handling email viruses with Exchange Online

    When customers receive an email with a suspected virus, they often ask “ What do I do now? ” This blog post helps answer that question and guides you through our recommended process. This is intended for customers using Office 365 or Exchange Online Protection with on-premises Exchange servers. First...
  • Blog Post: Managed Availability Probes

    Probes are one of the three critical parts of the Managed Availability framework (monitors and responders are the other two). As I wrote previously, monitors are the central components, and you can query monitors to find an up-to-the-minute view of your users’ experience. Probes are how monitors...
  • Blog Post: Important update available for Exchange Server 2013 hybrid deployments

    Update 8/26/14 : changed the resolution to include the release of Exchange 2013 Cumulative Update 6 (CU6). An important update is now available to resolve issues customers are currently experiencing when using the Hybrid Configuration Wizard (HCW) to create a new or manage an existing hybrid deployment...
  • Blog Post: Modern Public Folder Scale Improvements and More

    Update: Scale improvements have been rolled out for Office 365 announced in 10x increase in Public Folder limits . It has been about two months since I was in Austin at my first Microsoft Exchange Conference. I must say Austin left quite an impression on me, partly because of the wonderful people...
  • 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: Released: Exchange Server 2013 Cumulative Update 5

    The Exchange team is announcing today the availability of our most recent quarterly servicing update to Exchange Server 2013. Cumulative Update 5 for Exchange Server 2013 and updated UM Language Packs are now available on the Microsoft Download Center. Cumulative Update 5 represents the continuation...
  • 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: MEC 2014 Recordings are here!

    A few weeks ago we wrapped up MEC 2014 in Austin, TX with the farewell Austin post . Today we are happy to announce that the MEC 2014 keynote and breakout sessions are published on Channel 9. This includes the latest content on Exchange foundational topics and the latest features including groups, and...
  • 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...