Exchange SSL Offloading and the upcoming update blocking certificates with RSA key length less than 1024bit

Microsoft announced yesterday new approach regarding the validation of certificates coming in august this year. Certificates with a key length less than 1024bit will be blocked: Adding to our defense-in-depth measures, in August, we will release a change to how Windows manages certificates that have RSA keys of less than 1024 bits in length. Once this key length update is...

Update Rollup 3 for Exchange 2010 Service Pack 2

Just today Microsoft released the third rollup for Exchange Server 2010 Service Pack 2. See the announcement here. They specifically call out the following fixes. KB2689810 Meeting Requests bodies get rendered in plain text in Outlook when created via Exchange Web Services. KB2674445 Need the function to check ACL consistency during moving mailbox. KB2700705 RpcClientAccess crashes with SocketException when UDP...

Managing mailbox storage use in Exchange 2010, Part 1

It’s something most organizations encounter at some point: A mail server with no more space left or user’s can’t get a higher quota due to limited storage resources. Even with a basic policy regarding mailbox quota’s, running out of resources is still something that can happen if the server was not sized properly or upgraded to handle changed conditions (larger...

Book Review: iPhone with Exchange Server 2010 – Business Integration and Deployment by @stevegoodman

Recently Steve Goodman released his “iPhone with Exchange Server 2010 – Business Integration and Deployment” book by Packt Publishing. The first half of the book is a compact description of basic Exchange 2010 knowledge and the  necessary configuration for iOS connectivity (even with Office 365) via Exchange ActiveSync. After that more specifics topics regarding policies, Certificate based Authentication and some...

Upcoming Microsoft Events I’m attending: TechEd Europe and MEC

Faithfull Twitter followers probably already know, but my employer made it possible for me to attend TechEd Europe 2012 (June 26-29) in Amsterdam (and the Microsoft Exchange Conference 2012 (MEC, September 24-26) in Orlando! For me this TechEd is a bit more special than others I’ve attended (Barcelona, Berlin) because I was born in Amsterdam and I currently live within...

Exchange 2010 calendar publishing URLs are not updated after migrating to Office 365

With Exchange 2010 Service Pack 1 it became possible to share your calendar with anyone outside of you organization, depending on the Sharing Policy implemented by your Exchange Administrator. Users can then share their calendar via an obfuscated or an relatively public URL without the need for authentication (and SSL for that matter). For more information on how to prepare...