Transport Rules provides an organization with the tools needed to enforce messaging policies across their Exchange organization. You may be familiar with Transport Rules in Exchange Server 2007, and the ability to inspect different parts of a message Read More

Update Rollup 6 for Exchange Server 2007 Service Pack 1 (announced a few days ago) has been released. We would like to call out the following fixes included in this rollup: 1) Fix for a security issue which has been assigned a severity rating of critical. Read More

This is just a quick note that the regularly scheduled Exchange Server 2003 Intelligent Message Filter update that was set to be released on 1/7/2009 will not be happening. The next release for this update will be on 1/21/2009. For those that might not Read More

Recently, we've seen calls on OWA Change Password functionality and questions about the features with Windows Server 2008.  The following is a quick synopsis of what you need to know to get this working the way you need it to. Previous versions Read More

CSS often fields questions about troubleshooting Exchange 2007 Client Access Server (CAS) publishing rules using ISA Server 2006. The ForeFront TMG team blog has a great post: Troubleshooting OWA 2007 Publishing Rules on ISA Server 2006.  If you Read More

In my last post I showed how to set up OWA certificate based authentication on a Windows 2003 CAS with ISA 2006. In this post, I will cover how to set this up when your Client Access server is running on Windows 2008 server without being published with Read More

Lately we have seen more interest in certificate based authentication with Exchange 2007 Outlook Web Access. Using certificates for authentication can be considered more secure because a user cannot gain access to the mailbox simply by knowing the user Read More

Many companies and users consider mobile access to Exchange data an essential feature.  Exchange ActiveSync (EAS) is very popular as it allows this access and many devices have licensed and implemented EAS (including Windows Mobile).  Some companies Read More

EDIT 8/22/2008: We have updated the troubleshooting section. Download information for Update Rollup 3 for Exchange 2007 SP1 The update is live at: http://www.microsoft.com/downloads/details.aspx?FamilyId=63E7F26C-92A8-4264-882D-F96B348C96AB&displaylang=en Read More

Introduction We have been working on a problem that surfaced with the release of Exchange 2007 Rollup 5. A number of customers reported that some of their Exchange 2007 managed services did not start automatically after Rollup application, however they Read More

Recently I came across a situation where it was reported that Connection Filtering stopped working (IPs on the Blocklist and RBLs were no longer being blocked). The solution led me to write this blog to clarify some confusion about "when" connection Read More

In the past, if you wished to use S/MIME for e-mail encryption with an external recipient, you would add the recipient to your Contacts folder. This was typically done by having the recipient send you a digitally signed item and then right click on the Read More

One of the most common questions I'm asked is if we have any resources that document the default settings for the Exchange-related virtual directories in Exchange 2007 - specifically with regards to the authentication and SSL settings. This aims to Read More

The Microsoft Security Response Center (MSRC) team has announced today that a lot of vulnerability-related information will be posted on the new Microsoft Security Vulnerability Research and Defense Blog located at: http://blogs.technet.com/swi/ On Read More

Q&A With the Exchange MVP ExpertsWe invite you to attend a Q&A with the Microsoft Exchange Server MVPs. In this chat Exchange MVPs will be on hand to answer your questions about Exchange Server, Outlook and Exchange for Small Business Read More