Microsoft has again re-released Rollup 7 for Exchange 2010 SP1 to address an issue in which digital signatures on files produced and signed by Microsoft will expire prematurely.
Download: Update Rollup 7-v3 for Exchange Server 2010 Service Pack 1 (KB2778158)
View: Original list of fixes in Update Rollup 7 for Exchange 2010 SP1 (KB2743248)
View: Microsoft Security Advisory 2749655
