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XCCDF
Exchange 2010 Hub Transport Server STIG
Exch-2-811
External/Internet bound automated response messages must be disabled.
External/Internet bound automated response messages must be disabled.
An XCCDF Rule
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External/Internet bound automated response messages must be disabled.
Medium Severity
<VulnDiscussion>SPAM originators, in an effort to refine mailing lists, sometimes use a technique where they monitor transmissions for automated bounce back messages, such as 'Out of Office' messages. Automated messages include such items as Out of Office responses, non-delivery messages, or automated message forwarding. Automated bounce back messages can be used by a third party to determine if users exist on the server. This can result in the disclosure of active user accounts to third parties, paving the way for possible future attacks. </VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls>ECSC-1</IAControls>