EX16-MB-000520 - Exchange must not send automated replies to remote domains.

Information

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.

Solution

Open the Exchange Management Shell and enter the following command:

Set-RemoteDomain -Identity <'IdentityName'> -AutoReplyEnabled $false

Note: The <IdentityName> value must be in single quotes.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Exchange_2016_Y21M07_STIG.zip

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-8(2), CAT|II, CCI|CCI-001308, Rule-ID|SV-228396r612748_rule, STIG-ID|EX16-MB-000520, STIG-Legacy|SV-95417, STIG-Legacy|V-80707, Vuln-ID|V-228396

Plugin: Windows

Control ID: 6271cf81a43a4ab376aa23da3f375ebbc8654bf67e3de031e369e28201e1ed3c