Support Life-Cycle Policy for Exchange Server 5.5

Published: August 25, 2003 | Updated: January 10, 2006

Extended life-cycle support for Exchange Server 5.5 originally concluded on December 31, 2005 but has been adjusted to end January 10, 2006. This adjustment is part of an effort by Microsoft to provide a more predictable and consistent end-of-life-cycle experience. Microsoft offers a minimum of 10 years support (five years mainstream support plus five years extended support).


For More Information

To find information about upgrading from Exchange Server 5.5, read:

To read more about Exchange Server support policies, refer to:


For information about Microsoft support life-cycle policies, visit the Microsoft Help and Support site to read:


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