Exchange sürümleri ve build numraları Exchange Server 4.0 4.0.837 April 1996 Microsoft Exchange Server 4.0 (a) 4.0.993 August 1996 Microsoft Exchange Server 4.0 SP1 4.0.838 May 1996 Microsoft Exchange Server 4.0 SP2 4.0.993 August 1996 Microsoft Exchange Server 4.0 SP3 4.0.994 November 1996 Microsoft Exchange Server 4.0 SP4 4.0.995 April 1997 Microsoft Exchange Server 4.0