STIGQter STIGQter: STIG Summary: Microsoft Exchange 2019 Edge Server Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 30 Jan 2025:

Exchange send connectors delivery retries must be controlled.

DISA Rule

SV-259603r961155_rule

Vulnerability Number

V-259603

Group Title

SRG-APP-000247

Rule Version

EX19-ED-000116

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Update the EDSP to reflect the value for Transient Failure Retry Count.

Open the Exchange Management Shell and enter the following command:

Set-TransportService -Identity <'IdentityName'> -TransientFailureRetryCount 10

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

or

The value as identified by the EDSP that has obtained a signoff with risk acceptance.

Check Contents

Review the Email Domain Security Plan (EDSP).

Determine the value for Transient Failure Retry Count.

Open the Exchange Management Shell and enter the following command:

Get-TransportService | Select-Object -Property Name, Identity, TransientFailureRetryCount

If the value of "TransientFailureRetryCount" is not set to "10" or less, this is a finding.

or

If the value of "TransientFailureRetryCount" is set to more than "10" or has signoff and risk acceptance in the EDSP, this is not a finding.

Vulnerability Number

V-259603

Documentable

False

Rule Version

EX19-ED-000116

Severity Override Guidance

Review the Email Domain Security Plan (EDSP).

Determine the value for Transient Failure Retry Count.

Open the Exchange Management Shell and enter the following command:

Get-TransportService | Select-Object -Property Name, Identity, TransientFailureRetryCount

If the value of "TransientFailureRetryCount" is not set to "10" or less, this is a finding.

or

If the value of "TransientFailureRetryCount" is set to more than "10" or has signoff and risk acceptance in the EDSP, this is not a finding.

Check Content Reference

M

Target Key

5579