Update Rollup 7 for Exchange Server 2010 Service Pack 2 resolves issues that were found in Exchange Server 2010 Service Pack 2 since the software was released. This update rollup is highly recommended for all Exchange Server 2010 Service Pack 2 customers.
For a list of changes that are included in this update rollup, see KB2874216.
Download it here: http://www.microsoft.com/en-us/download/details.aspx?id=39863
Cheers,
Anderson Patricio
http://www.msexchange.org/blogs/patricio/
http://www.andersonpatricio.ca
Twitter: @apatricio