The ForeFront product team has just released Software Update 1 for Microsoft Forefront TMG SP1 that fixes the issue with ForeFront TMG 2010, ForeFront Protection for Exchange and Exchange 2010 SP1 on the Edge Transport server role. More details in Software Update 1 for Microsoft Forefront Threat Management Gateway (TMG) 2010 Service Pack 1 now available for download on the ForeFront TMG team blog.