Hello Folks,
Microsoft has released the update rollup 4 for Exchange Server 2007.
You can download it from: http://www.microsoft.com/downloads/details.aspx?FamilyId=E56FC52A-216E-4225-BF2F-F082C20B7B21&displaylang=en
Description of the Update Rollup: http://support.microsoft.com/?kbid=940006
Best Regards,
Anderson Patricio