M. Omer Siddiqui's Blog

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  • 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: Latest Exchange 2013 Calculator

    We recently 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

    At 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 using...
  • Blog Post: Take Advantage of EOPs new Bulk Mail Detection

    Bulk mail is often mistaken for spam and is starting to become a larger problem for organizations. EOP is not very aggressive out of the box when it comes to bulk mail because this type of mail falls into a grey area. Some organizations will want to receive this type of mail, whereas others will not...
  • 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: Released: Cumulative Update 6 for Exchange Server 2013

    The Exchange team is announcing today the availability of our most recent quarterly servicing update to Exchange Server 2013. Exchange Server 2013 Cumulative Update 6 and updated UM Language Packs are now available on the Microsoft Download Center. CU6 represents the continuation of our Exchange 2013...
  • Blog Post: Spam email and Office 365 environment - connection and content filtering in EOP

    In the last related blog post we gave some introduction about Exchange Online Protection (EOP), what needs to be done when EOP is not working as desired and spam email troubleshooting process and classification. In this blog we will be moving further and discussing some more advanced option to stop spam...
  • 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 obtain...
  • Blog Post: Improved CalCheck integration with OffCAT

    In the last week there have been two big improvements related to CalCheck and OffCAT that will make life a little easier when troubleshooting ‘calendar’ issues. 1. Relevant solutions for all CalCheck issues added to the following article: 2678030 Information about the Calendar Checking Tool for Outlook...
  • Blog Post: Microsoft Exchange 2013 and ADRMS Integration

    I recently did an Exchange 2013 deployment at one of our customers and also integrated with ADRMS so I thought to outline the high level integration steps to assist others. 1. Verify Exchange Servers in Microsoft Exchange Security Groups OU contain your Exchange servers. 2. Modify the default AD RMS...
  • Blog Post: Released: PelNet

    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 ole’ Telnet, check SMTP status...
  • Blog Post: The Preferred Architecture (Exchange 2013)

    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: Updated: Exchange Server Deployment Assistant

    We’re happy to announce updates to the Exchange Server Deployment Assistant ! These updates offer you more deployment options and outline new features that make deployments more flexible and easier to configure. We’ve updated the Deployment Assistant to include the following: Support for the Exchange...
  • 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: 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 this statement...
  • Blog Post: Released: Exchange Server 2013 Service Pack 1

    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 mailboxes in customer environments...
  • Blog Post: Data loss prevention in Exchange just got better

    With Exchange 2013, we released a new data loss prevention (DLP) capability based on deep content analysis that helps you identify, monitor, and protect sensitive information. We’re continually looking to expand our DLP capabilities, and today we’re bringing two new ones to you—Document Fingerprinting...
  • Blog Post: Exchange ActiveSync Guided Walkthrough

    Many users rely on their smart phones and other mobile devices to access their email and calendar using Exchange ActiveSync (EAS). Any issues with mobile device access and EAS are noticed and reported immediately and a solution is expected just as quickly. To assist you in troubleshooting EAS issues...
  • 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: Exchange 2010 Diagnostics: The Unified Messaging Troubleshooting Tool

    The Unified Messaging Troubleshooting Tool is a diagnostics cmdlet which every administrator should run whenever someone desperately (or not) comes to them and says "Help! My voicemail isn't working!". The tool executes a set of tests and outputs the possible root causes for any detected issues...
  • Blog Post: Hybrid Mailbox moves and EMC changes

    As customers are upgraded or sign up for the latest version of Office 365 for business, they may notice some changes in their recipient and organization management experience. For instance, we now allow the Organization and Hybrid Migration management experience to be initiated from the Exchange Administration...
  • Blog Post: CalCheck - The Outlook Calendar Checking Tool

    Over the past year or so I have been working on this tool - adding functionality and checks based off my experience as an Outlook engineer, and from suggestions given by other engineers. Well, this February the tool has been released so that all our customers can download and use it to check for potential...
  • Blog Post: Managing OAB in Exchange Server 2013

    The Exchange team blog article OAB in Exchange Server 2013 introduced the new Offline Address Book (OAB) generation and distribution architecture in Exchange Server 2013. Take a few moments to visit the article if you haven’t seen it yet or re-visit it for a quick refresher. The OAB management and administration...
  • Blog Post: Exchange 2010 SP2 RU1 and CAS-to-CAS Proxy Incompatibility

    We wanted to give you a heads up regarding a change in CAS to CAS proxy behavior between servers running Exchange 2010 SP2 RU1 and servers running older versions of Exchange. The SP2 RU1 package introduced a change to the user context cookie which is used in CAS -to-CAS proxying. An unfortunate side...