Exchange must not send delivery reports to remote domains.

From MS Exchange 2013 Edge Transport Server Security Technical Implementation Guide

Associated with: CCI-002385

SV-84547r1_rule Exchange must not send delivery reports to remote domains.

Vulnerability discussion

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 delivery reports to remote domains are disabled. Before enabling this setting, first configure a remote domain using the EMC or the New-RemoteDomain cmdlet.

Check content

Open the Exchange Management Shell and enter the following command: Get-RemoteDomain | Select Name, Identity, DeliveryReportEnabled If the value of DeliveryReportEnabled is not set to False, this is a finding.

Fix text

Open the Exchange Management Shell and enter the following command: Set-RemoteDomain -Identity <'IdentityName'> -DeliveryReportEnabled $false Note: The value must be in quotes.

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