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XCCDF
Microsoft Exchange 2016 Mailbox Server Security Technical Implementation Guide
SRG-APP-000435
Exchange must not send nondelivery reports to remote domains.
Exchange must not send nondelivery reports to remote domains.
An XCCDF Rule
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Exchange must not send nondelivery reports to remote domains.
Medium Severity
<VulnDiscussion>Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An attacker might use this information to conduct future attacks. Ensure that nondelivery reports to remote domains are disabled. Before enabling this setting, first configure a remote domain using the Exchange Management Console (EMC) or the New-RemoteDomain cmdlet.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>