ActiveX One-Off forms must be configured.
An XCCDF Rule
Description
By default, third-party ActiveX controls are not allowed to run in one-off forms in Outlook. You can change this behavior so that Safe Controls (Microsoft Forms 2.0 controls and the Outlook Recipient and Body controls) are allowed in one-off forms, or so that all ActiveX controls are allowed to run.
- ID
- SV-228435r508021_rule
- Version
- DTOO234
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security "Allow Active X One Off Forms" to "Enabled: Load only Outlook Controls".