The Exchange Receive connector timeout must be limited.
An XCCDF Rule
Description
<VulnDiscussion>Email system availability depends in part on best practice strategies for setting tuning. This configuration controls the number of idle minutes before the connection is dropped. It works in conjunction with the Maximum Inbound Connections Count setting. Connections, once established, may incur delays in message transfer. If the timeout period is too long, there is risk that idle connections may be maintained for unnecessarily long time periods, preventing new connections from being established.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-207321r615936_rule
- Severity
- Low
- References
- Updated
Remediation - Manual Procedure
Update the EDSP.
Open the Exchange Management Shell and enter the following command:
Set-ReceiveConnector -Identity <'IdentityName'> -ConnectionTimeout 00:10:00