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Continue to ChatExchange 2013 Service Pack 1, Exchange 2010 SP3 Rollup 5 y Exchange 2007 SP3 Rollup 13 liberados. http://blogs.itpro.es/rtejero/2014/02/25/exchange-2013-service-pack-1-exchange-2010-sp3-rollup-5-y-exchange-2007-sp3-rollup-13-liberados/