The Exchange 2010 RTM (Release To Manufacturing) build has now reached the end of its support lifecycle. Customers should upgrade to SP1 to continue to receive support (amongst many other good reasons!).
The Exchange 2010 lifecycle can be viewed here:
Full details about the Microsoft lifecycle policy can be viewed here
I would also encourage you to sign up to the quarterly lifecycle update newsletter to ensure that you have the knowledge to keep all of your products in a supported state, and continue to receive the support that you are entitled to!
If you would like to have Microsoft Premier Field Engineering (PFE) visit your company and assist with the topic(s) presented in this blog post, then please contact your Microsoft Premier Technical Account Manager (TAM) for more information on scheduling and our varied offerings!
If you are not currently benefiting from Microsoft Premier support and you’d like more information about Premier, please email the appropriate contact below, and tell them you how you got introduced!
For all other areas please use the US contact point.