The Exchange 2010 install of the CAS role includes the installation of the legacy Exchange Virtual Directories. The Exchange, Public and Exchweb Virtual Directories are placed and configured directly in the IIS metabase, therefore these Virtual Directories Read More

In this blog post, we will be highlighting some of the most common errors that may be seen when attempting to open the Exchange Management tools (Exchange Management Console and Exchange Management Shell). To start off, you first need to be aware that Read More

In many organizations the skill sets that administer Exchange, Active Directory (AD), Domain Naming System (DNS), and the network infrastructure are often segregated. Since Exchange is heavily dependent on communication with AD and that communication Read More

The Delivery Reports feature which was introduced in Exchange 2010 enables both Information Workers, and administrators to view delivery status of messages and discover answers to questions such as: why a message was not delivered, where a message is Read More

There is potential for calendar related problems when new diagnostic logging for Message Access, which is available in Exchange Server 2007 Service Pack 2 (SP2) is raised from its default setting of Lowest.  A Knowledge Base article and a fix are Read More

MailTips brings together information from many sources; its value to users is taking what can be complicated on the backend and presenting it very simply. This does mean, however, that there are a few different places to look when troubleshooting MailTips.  Read More

This one can be a bit counter intuitive for folks coming from any legacy version of Exchange... Issue You got your shiny new Exchange 2010 download and excitedly installed it on your 2010 hardware. You have setup all your CAS server settings, your DAG Read More

Today we released an updated version of the Exchange Remote Connectivity Analyzer. For those of you not familiar with this site, it is a Web-based tool that helps you troubleshoot connectivity issues. The tool simulates several client logon and mail flow Read More

We have released the updated Setup prerequisite files for the problem we wrote about in Exchange 2007 SP2 Setup fails if all domain controllers are running Windows Server 2008 R2. This fix will unblock Exchange 2007 SP2 setup in those environments. Installation Read More

EDIT 9/16/2009: We have now published fixes for this problem and have an updated blog post about it. Please go here to read the updated information. We have learned of and analyzed the problem where the Exchange 2007 SP2 installation can fail during Read More

A while ago I posted something on this subject, but - I wanted to let everyone know that Mike Lagase has just posted a very detailed troubleshooting guide for those problems on his blog. This is the most comprehensive collection of information on how Read More

You may experience problems performing mailbox move operations if the number of characters on a given Exchange attribute is greater than the default values defined by /SchemaPrep. Most commonly this issue occurs because of an administrative and unsupported Read More

EDIT 10/14/2009: We updated the section that recommends settings for environments that need to support messages larger than default 10MB message size. Already an expert on large messages? You'll still want to check out the updated "Best Practices" section Read More

Interested in learning the fundamentals of troubleshooting common Unified Messaging call flow issues? We've just released a new white paper on troubleshooting Unified Messaging. In this white paper, we walk you through the flow of a simple call in UM Read More

You may find that recovery operations from online backup fail when the target of a restore is a Recovery Storage Group that exists on an External USB storage device. Most commonly External USB storage is implemented as a temporary measure due to lack Read More