STIGQter STIGQter: STIG Summary: Microsoft Exchange 2016 Mailbox Server Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

Exchange must not send automated replies to remote domains.

DISA Rule

SV-228396r612748_rule

Vulnerability Number

V-228396

Group Title

SRG-APP-000261

Rule Version

EX16-MB-000520

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

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.

Check Contents

Note: Automated replies to .MIL or .GOV sites are allowed.

Open the Exchange Management Shell and enter the following command:

Get-RemoteDomain | Select Name, Identity, AutoReplyEnabled
If the value of “AutoReplyEnabled” is set to “True” and is configured to only Reply to .MIL or .GOV sites, this is not a finding.

If the value of "AutoReplyEnabled" is not set to "False", this is a finding.

Vulnerability Number

V-228396

Documentable

False

Rule Version

EX16-MB-000520

Severity Override Guidance

Note: Automated replies to .MIL or .GOV sites are allowed.

Open the Exchange Management Shell and enter the following command:

Get-RemoteDomain | Select Name, Identity, AutoReplyEnabled
If the value of “AutoReplyEnabled” is set to “True” and is configured to only Reply to .MIL or .GOV sites, this is not a finding.

If the value of "AutoReplyEnabled" is not set to "False", this is a finding.

Check Content Reference

M

Target Key

4223

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