Exchange must not send nondelivery reports to remote domains.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-207330 | EX13-MB-000320 | SV-207330r615936_rule | Medium |
| Description |
|---|
| 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 EMC or the New-RemoteDomain cmdlet. |
| STIG | Date |
|---|---|
| Microsoft Exchange 2013 Mailbox Server Security Technical Implementation Guide | 2021-12-16 |
Details
| Check Text ( C-7588r393503_chk ) |
|---|
| Open the Exchange Management Shell and enter the following command: Get-RemoteDomain | Select Name, Identity, NDREnabled If the value of NDREnabled is not set to False, this is a finding. |
| Fix Text (F-7588r393504_fix) |
|---|
| Open the Exchange Management Shell and enter the following command: Set-RemoteDomain -Identity <'IdentityName'> -NDREnabled $false Note: The |