Rely on CSS for font formatting

This policy setting allows you to configure the "Use Cascading Style Sheets (CSS) for appearance of messages" option found under Microsoft Outlook's File tab | Outlook Options | Mail | Message format.

If you enable this policy setting, the option is checked.

If you disable or do not configure this policy setting, the option is not checked.

Supported on: At least Windows 7
Registry Pathsoftware\policies\microsoft\office\16.0\common\mailsettings
Value Nameusecssinhtml
Enabled Value1
Disabled Value0


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