Hi everyone,

The Rollup 4 for Exchange Server 2010, Service Pack 1 has just been released today 22/06/2011

Overview :
Update Rollup 4 for Exchange Server 2010 Service Pack 1 resolves issues that were found in Exchange Server 2010 Service Pack 1 since the software was released.  Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1′ for more details. In particular we would like to specifically call out the following fixes which are included in this release:

• 2519359 Unable to Create a ‘Reply With’ Rule on Public Folders Even With Owner and Send As Permissions
• 2394554 Generating DSN fails if original mail uses non-support encoding charset.
• 2490134 Outlook 2007 does not deliver "Delayed Delivery" Messages against an Exchange 2010 Server in Online mode with any additional Transport loaded in the Outlook Profile

Download it from :
Update Rollup 4 for Exchange Server 2010 Service Pack1
http://www.microsoft.com/download/en/details.aspx?id=26554