The Exchange Web Services team is proud to announce that MS Press has released the first book describing the new unifying API in Exchange 2007. Authored exclusively by members of the Exchange Team, this book is a hefty 928 pages filled with in-depth coverage Read More

MAPI Messaging Benchmark (MMB3/MMB4) has been the benchmark for measuring the performance and scalability of computers running Microsoft Exchange Server.  While MMB has served its purpose, it also has limitations in helping our customers compare Read More

Andy Brauninger, a PM on the Outlook team, took the following photo downtown Seattle few weeks ago. We thought this was just too cool not to post!! For those of you that do feel like email ninjas, there is always http://www.exchangeninjas.com/ ! Read More

Understanding how certificates are selected for a Transport layer Security (TLS) session will help you troubleshoot TLS issues. Since we shipped Exchange 2007, support engineers Jenny Frye and Stuart Presley have been helping customers work through issues Read More

We have had some requests to talk more about the process to implement TLS between two Exchange organizations. Here it is! The following walk-through should help you do this. Note that those instructions apply to Exchange Server 2000/2003. We will Read More

The Entourage team has blogged recently about the release of Entourage 2004 SP2: What's new in Entourage 2004 SP2 SP2 details: Enforcing Exchange Permissions within Entourage Entourage 2004 SP2: Common GAL issues - KC Lemson Read More

A common strategy for increasing the cost of would-be mail abuse uses a technique called tarpitting. Mail servers that tarpit wait a specified period of time before issuing SMTP responses to the client, thus increasing the time investment needed to successfully Read More

What are badmails? Badmails are mail that the Exchange server cannot deliver or NDR (non-delivery report). A common source of badmails comes from the unsuccessful attempt to deliver an DSN (delivery status notifiction. NDR is a form of DSN).  Read More

Of the various processes for logging into a POP3/IMAP4 service of the Exchange server, the most commonly used is Basic Authentication through an SSL encrypted session.  When choosing this method, each client is asked to provide a username and password.  Read More

Working within protocols for several years, one of the most invaluable tools that we have in our toolbox is the Network Monitor (one of the tools in the Microsoft Systems Management Server, Microsoft Windows 2000 Server, or Microsoft Windows Server 2003, Read More