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Read signed email as plain text must be enforced.

An XCCDF Rule

Description

Outlook can display e-mail messages and other items in three formats: plain text, Rich Text Format (RTF), and HTML. By default, Outlook displays digitally signed e-mail messages in the format they were received in.

Property Value
Responsibility System Administrator

ID
SV-33519r1_rule
Version
DTOO215 - Outlook
Severity
Medium
References
Updated

Remediation Templates

A Manual Procedure

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Outlook Options -> Preferences -> E-mail Options “Read signed e-mail as plain text” to “Enabled”.