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

EDIT: This post was updated on 5/2/2008 to include links to international versions of new XML files. We're happy to announce the release of the English version of an update to the Exchange Server 2007 SP1 Setup prerequisite check file. This update will Read More

EDIT: This post was updated on 4/29/2008 to add more detail about the Exchange-aware backup on next version of SBS. In a previous blog post, we wrote about the various versions of Exchange Server and their support for Windows Server 2008. Now that Windows Read More

EDIT: This post has been updated on 6/19/2008 - the Resolution section has been updated. Issue: Exchange support has become aware of an issue where Exchange 2007 SP1 administrators are receiving an error message in the Exchange Management Console Read More

EDIT 03/26/08: Please see our later post on this subject for the location of updated prerequisite check XML file. Summary This is a follow-up to an earlier post: Single-label Domain Names and Exchange Server 2007 SP1. Please refer to it for background Read More

EDIT: This post has been updated on 5/20/2008 to include a link to an Outlook 2007 hotfix for this behavior. If you have been struggling with Delegate errors in multi-domain environments where you consistently get the below error when attempting to add Read More

EDIT 9/22/2008: The support policy for installing Exchange Server 2007 in an SLD environment has changed, and is now supported. Please go here and read it for follow-up on this situation. If you attempt to install Exchange 2007 SP1 into an Active Directory Read More

A while ago we told you about the setup prerequisite change in Exchange 2007 SP1 that allows setup to ignore unreachable domains and domains that do not have any domain controllers running a minimum of Windows 2003 SP1. That post is here: http://msexchangeteam.com/archive/2007/07/30/446579.aspx Read More

Microsoft Exchange Server 2007 and Windows Server 2008 The release to manufacturing (RTM) version of Exchange 2007 cannot be installed on Windows Server 2008. However, Exchange 2007 Service Pack 1 will be supported for installation on Windows Server Read More

After performing a Cross Org mailbox migration, administrators need to enable mail redirection from the source to the target forest. Even though GALSync remains the recommended tool for this purpose, the initial synchronization process can take some time Read More

One of the things that I have liked the most about the move to Exchange 2007 is the introduction of PowerShell into the management of Exchange. PowerShell is a very powerful tool that the Exchange administrator now has in their arsenal. Many regular, Read More

EDIT 1/24/2008: Please see the Part 2 of this post which has additional information on how to resolve this problem. After applying SP2 to an Exchange 2003 server, users may have problems updating Distribution list membership and delegating permissions Read More

This post focuses on two aspects of Active Directory (AD) design for Exchange 2007:  The recommended ratio of Exchange 2007 servers to Active Directory global catalog (GC) servers When to use dedicated Active Directory sites for your Exchange Read More

When you add an SMTP Address to an existing user account, Exchange (and we are talking Exchange 2003 here) is responsible for determining if the address is unique within the organization. Specifically, this validation is handled by the Exchange Read More

Exchange Server 2007 introduces a new mechanism for distributing Offline Address Books (OAB) that doesn't require Public Folders. It instead uses HTTP(S) and the Background Intelligent Transfer Service (BITS). There are several potential advantages of Read More