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Exchange must not send automated replies to remote domains.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-80707 | EX16-MB-000520 | SV-95417r1_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. Remote users will not receive automated "Out of Office" delivery reports. This setting can be used to determine if all the servers in the organization can send "Out of Office" messages. |
| STIG | Date |
|---|---|
| Microsoft Exchange 2016 Mailbox Server Security Technical Implementation Guide | 2018-08-28 |
Details
| Check Text ( C-80441r1_chk ) |
|---|
| Open the Exchange Management Shell and enter the following command: Get-RemoteDomain | Select Name, Identity, AutoReplyEnabled If the value of "AutoReplyEnabled" is not set to "False", this is a finding. |
| Fix Text (F-87561r1_fix) |
|---|
| Open the Exchange Management Shell and enter the following command: Set-RemoteDomain -Identity <'IdentityName'> -AutoReplyEnabled $false Note: The |