Microsoft Outlook 2013 Security Technical Implementation Guide

The Microsoft Outlook 2013 Security Technical Implementation Guide (V1 R14) has 82 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V1 · R14

CurrentPublished Thu Jan 30 2025

Trust EMail from senders in receivers contact list must be enforced.

Microsoft Outlook 2013 Security Technical Implementation Guide

Assessment Title

Rule Text

Trust EMail from senders in receivers contact list must be enforced.

Description

Discussion Text

Email addresses in users' Contacts list are treated as safe senders for purposes of filtering junk email. If this configuration is changed, email from users' Contacts might be misclassified as junk and cause important information to be lost.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-242682

Rule

SV-242682r961863_rule

Severity

medium

Rule Version

DTOO223

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Preferences -> Junk E-mail "Trust E-mail from Contacts" is set to "Enabled".

Procedure: Use the Windows Registry Editor to navigate to the following key: 

HKCU\Software\Policies\Microsoft\Office\15.0\outlook\options\mail

Criteria: If the value JunkMailTrustContacts is REG_DWORD = 1, this is not a finding.

Implementation Procedure

Fix Text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Outlook Options -> Preferences -> Junk E-mail "Trust E-mail from Contacts" to "Enabled".

STIG check 19 of 82 in the Microsoft Outlook 2013 STIG checklist

← Previous · V-242681Junk Mail UI must be configured.Next · V-242683 →Recipients of sent email must be unable to be added to the safe senders list.