Download Exchange 5.5 Internet Mail Connector (IMC) Patch 2656.59 from Official Microsoft Download Center

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Exchange 5.5 Internet Mail Connector (IMC) Patch 2656.59

This patch resolves problems that were found in the Exchange 5.5 Internet Mail Connector (IMC) since SP4 was released. See "More Information" for a list of the fixes that are included in this patch.