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.
| Registry Hive | HKEY_CURRENT_USER |
| Registry Path | software\policies\microsoft\office\14.0\common\mailsettings |
| Value Name | usecssinhtml |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |