| Vuln ID | Severity | Asset | STIG | Title | Status | Doc Status | Assigned To | Actions |
|---|---|---|---|---|---|---|---|---|
| V-228390 | CAT III | MONT-MB-002 | Microsoft Exchange 2016 Mailbox Server S... | The Exchange Outbound Connection Timeout must be 1... | - | |||
Check TextReview the Email Domain Security Plan (EDSP) or document that contains this information. Determine the Connection Timeout value. Open the Exchange Management Shell and enter the following command: Get-SendConnector | Select Name, Identity, ConnectionInactivityTimeOut For each Send connector, if the value of "ConnectionInactivityTimeOut" is not set to "00:10:00", this is a finding. or If "ConnectionInactivityTimeOut" is set to a value other than "00:10:00" and has signoff and risk acceptance in the EDSP, this is not a finding. Fix TextUpdate the EDSP to specify the "ConnectionInactivityTimeOut" value. Open the Exchange Management Shell and enter the following command: Set-SendConnector -Identity <'IdentityName'> -ConnectionInactivityTimeOut 00:10:00 Note: The <IdentityName> value must be in single quotes. or Enter the value as identified by the EDSP that has obtained a signoff with risk acceptance. Finding DetailsEvaluate-STIG 1.2507.5 (Scan-MSExchange2016MB_Checks) found this to be NOT A FINDING on 10/23/2025 ResultHash: B015A87E59B8836B88A3017C6E713B798A01E596 ~~~~~ MONTFORD MNOC-MAIL ConnectionInactivityTimeOut: 00:10:00
Source: _Reviewed/MONT-MB-002/Checklist/MONT-MB-002_MSExchange2016MB_V2R6_20251023-152357.ckl
Scan Date: 2026-01-14T12:57:33.455034
Technology Area: Exchange Server
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