Exchange 2010 available for the public

Exchange 2010 RTM download

Exchange Single Instance Storage (SIS)

Starting from Exchange 2010 Microsoft will not use single instance storage anymore. But what did single instance storage do and what are the pro’s/cons of it?

Block messages to specific domains

With Exchange 2007 you could only configure some specific things on the Edge server, in Exchange 2010 RC some of these functions are also available on the HUB server. One of those things is block messages to specific domains. In Exchange 2007 this could only be configured on the Edge server, in Exchange 2010 RC this can also be done on the HUB server.

New CAS-server not used by clients

In Exchange 2010 clients will make a connection to the CAS server(s) instead of the mailboxserver. One exclusion for this are the Public Folders, they will still be accessed view the old way. One of the advantages of this is that client will lose connection for 30 seconds instead of for 1 minute during a failover.

Exclude domain-controllers to be used by Exchange

As you may already know Exchange does a discovery to find the domain controllers  in the AD. When you have a look at the application event log you will see events with the source _MsExchange ADAccess _and Event id _2080. _This event will be seen every 15 minutes, this because the check is performed every 15 minutes.

Exchange 2010 RTM available

Yes it’s here the RTM version of Exchange 2010. At 9:00AM local  time in the US a blog is posted on by the Exchange Team. The RTM status means that the software will be available for a selective group of people.  Suspected is that Exchange 2010 will be available for everyone early November, it will be launched during TechEd Berlin.

Create a new room and set permissions in one step

A really simple Powershellscript, the script below will make it possible to create a room and will add extra permissions to it:

Exchange 2007: install a certificate

Exchange 2010 will propably be RTM soon, so before that a new tutorial for Exchange 2007.

Supported upgrade paths

As Exchange 2010 is almost there you may got the question from which version of Exchange can I upgrade to 2010 and which versions can run besides each other. Below an overview of this and the prerequisites you must met:

Access is denied. HResult =-2147024891

At least I had time to upgrade Exchange to SP2 and install Exchange 2010 RC in the same  organization. Everything went well on first sight. The only issue which I discovered was when opening the CAS server below the server configuration folder. In that case it displayed the following error message: “Unable to create IIS (Internet Information Services) Directory Entry. Error Message is: Access is denied. HResult =-2147024891.