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  • Blog Post: Ask the Perf Guy: How big is too BIG?

    We’ve seen an increasing amount of interest lately in deployment of Exchange 2013 on “large” servers. By large, I mean servers that contain significantly more CPU or memory resources than what the product was designed to utilize. I thought it might be time for a reminder of our scalability recommendations...
  • Blog Post: Exchange 2013 Calculator Updates

    Today, we released an updated version of the Exchange 2013 Server Role Requirements Calculator . In addition to numerous bug fixes, this version includes new functionality: CPU utilization table, ReplayLagManager support, MaximumPreferredActiveDatabases support, Restore-DatabaseAvailabilityGroup scenario...
  • Blog Post: VSSTester script updated – troubleshoot Exchange 2013 and 2010 database backups

    It’s been a while since we talked about VSSTester script! Murali, who maintained the script before, asked me to take over the script maintenance and thus I’m releasing this updated version. This script update is long overdue but better late than never! As before, you can grab a copy of the script from...
  • Blog Post: Exchange 2013 Monitoring Mailboxes

    Introduction Exchange Server 2013 introduced a new feature called Managed Availability , which is a built-in monitoring system with self-recovery capabilities. Managed Availability performs continuous tests (probes) that simulate end-user actions, to detect possible problems with Exchange components...
  • Blog Post: Want more control over Sent Items when using shared mailboxes?

    Edit 6/15/2015: We are starting to make this feature available again in Office 365. Note that the new shared mailbox sent items behavior is disabled by default and if Admins want it enabled, they can do so by using CMDlets mentioned below. Additionally, we are still on track to ship this to our on-premises...
  • Blog Post: Single-Click Mailbox Conversion

    Here’s a scenario that might be familiar to you: Sometimes, in support-focused organizations, the email account for external communications with customers is often managed by a single employee. When that employee transitions out of that role, mailbox management responsibility can be shared by multiple...
  • Blog Post: A better way to recover a mailbox

    Update 06/11/2015 : We have now disabled the old method of recovering a mailbox (which involved using Get-RemovedMailbox and New-Mailbox –RemovedMailbox) and we no longer support the recovery of hard deleted mailboxes. The process of recovering deleted users or mailboxes in a hybrid or cloud-only organization...
  • 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: 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: 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: 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: 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: 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: 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 2010 (RTM) public folder replica lists could be modified in unexpected ways if public folder was created when Exchange 5.5 was in the organization

    We wanted to let you know about a problem that can cause some or all of the replicas of a public folder to unexpectedly disappear when changing the replica lists on Exchange 2010. This can happen when using the Exchange 2010 RTM (Released to Manufacturing) Public Folder Management Console, the Set-PublicFolder...
  • Blog Post: Geek Out With Perry on Exchange Archiving

    Recently we posted about Perry Clarke’s blog and the Geek Out With Perry series of chalk talk videos – see Check out our our new blog and video series - Geek Out With Perry , Geek Out with Perry on Data Protection , and Answered: Data Protection questions on Geek Out With Perry . If you haven't yet started...
  • Blog Post: How fragmentation on incorrectly formatted NTFS volumes affects Exchange

    I wanted to give you a quick pointer to a very interesting blog post that discusses the subject of Exchange database fragmentation on incorrectly formatted NTFS volumes, what the ramifications of those situations can be and how to deal with them. It has been written by Mike Lagase on his blog and can...
  • Blog Post: Continuous Replication Deep Dive White Paper is here...

    Many of you have been wondering how continuous replication works in Exchange 2007. The Continuous Replication Deep Dive whitepaper discusses how log shipping, log inspection, and log replay work within Exchange 2007. In addition, the paper discusses the mechanics of how scheduled and unscheduled outages...
  • Blog Post: Finding High Item Count Folders Using the Exchange Management Shell

    EDIT 06/18/2010 : Few post changes to match the newest version of the script. Working in Exchange Customer Service and Support, we often see cases where user performance, or overall server performance, is impacted because of a high number of items in critical folders within user's mailboxes. This...
  • Blog Post: Exmon for Exchange 2007 SP1? Check!

    EDIT 6/25/2009: We have updated the download package to remove the need for dependency on Visual C++ 2008 SP1 Redistributable package. The tool can be found in the same place as before, but the version has now changed to 14.00.0611.003. Just a quick note to share the news that we have just published...
  • Blog Post: Public Folder replication troubleshooter

    Recently, we have released a Guided Walk Through (GWT) for troubleshooting public Folder replication issues in Microsoft Exchange 2003.  There are a couple of ways to access the troubleshooter.  You can use the link here to access it directly.  As well, it will be embedded in various related...
  • Blog Post: PFDAVAdmin update is now released

    An updated version of the PFDAVAdmin tool has been released to the web. You can get it from the download center at this link: http://www.microsoft.com/downloads/details.aspx?familyid=635BE792-D8AD-49E3-ADA4-E2422C0AB424 . This update contains various bug fixes that have been made over the last three...
  • Blog Post: Updates to the Exchange 2007 Mailbox Server Role Storage Requirements Calculator

    To read the updated calculator blog post and get the calculator, go HERE . All future calculator updates will be rolled into this page, sorted from newer to older. UPDATE ON 06/16/2010: Version 17.6 Bug Fixes Fixed Read IOPS / mbx calculation to take into account the four scenarios...
  • Blog Post: Public Folder Replication Changes in Exchange 2010 Sp1

    Many of you who have migrated or are still migrating public folders from Exchange 2003 to Exchange 2007 or 2010 have run into replication failures due to property validation. This validation was first introduced in Exchange 2007, and I initially blogged about some those issues in this old post on EHLO...
  • Blog Post: Office 365 Beta: Completing provisioning of archive in the cloud from your on-premises Exchange 2010 server

    In Exchange 2010, we introduced Personal Archives, an email archiving feature intended to allow you to reduce or eliminate PST files by provisioning archive mailboxes for your users. For more details, see Understanding Personal Archives in Exchange 2010 documentation. In Exchange 2010 RTM, you can...