STIGQter: STIG Summary: Microsoft Exchange 2019 Mailbox Server Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 02 Jul 2025:

Exchange must have anti-spam filtering enabled.

DISA Rule

SV-259690r961161_rule

Vulnerability Number

V-259690

Group Title

SRG-APP-000261

Rule Version

EX19-MB-000138

Severity

CAT II

CCI(s)

CCI-001308 - Automatically update spam protection mechanisms on an organization-defined frequency.

Weight

Fix Recommendation

Update the EDSP with the anti-spam mechanism used.

Open the Exchange Management Shell and enter the following command for any values that were not set to "True":

Set-ContentFilterConfig -Enabled $true

Set-SenderFilterConfig -Enabled $true

Set-SenderIDConfig -Enabled $true

Set-SenderReputationConfig -Enabled $true

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Review the Email Domain Security Plan (EDSP).

Note: If using another DOD-approved anti-spam product for email or a DOD-approved email gateway spamming device, such as Enterprise Email Security Gateway (EEMSG), this is not applicable.

Open the Exchange Management Shell and enter the following command:

Get-ContentFilterConfig | Select-Object -Property Name, Enabled|Format-Table;
Get-SenderFilterConfig |Select-Object -Property Name, Enabled |Format-Table;
Get-SenderIDConfig |Select-Object -Property Name, Enabled |Format-Table;
Get-SenderReputationConfig |Select-Object -Property Name, Enabled |Format-Table

If any of the above values returned are not set to "True", this is a finding.

Exchange must have anti-spam filtering enabled.

DISA Rule

Vulnerability Number

Group Title

Rule Version

Severity

CCI(s)

Weight

Fix Recommendation

Check Contents

Vulnerability Number

Documentable

Rule Version

Severity Override Guidance

Check Content Reference

Target Key