Extended Support End Date for Exchange 2003 is April 2014

Microsoft Support Life Cycle

Products Released                   Lifecycle Start Date   Mainstream Support End Date                  Extended Support End Date

Exchange Server 2003 Enterprise Edition 9/28/2003 4/14/2009                          4/8/2014                                        5/25/2005

Exchange Server 2003 Service Pack 1 5/25/2004 Not Applicable                 Not Applicable                        1/8/2008

Exchange Server 2003 Service Pack 2 10/19/2005 Review Note                         Review Note

Exchange Server 2003 Standard Edition 9/28/2003 4/14/2009                          4/8/2014                                         5/25/2005