Message Formats: registry value msgformatsUserHKCU\software\policies\microsoft\office\16.0\outlook\security
- Policy ID
- L_MessageFormats
- Scope
- User Configuration
- Supported on
- At least Windows Server 2008 R2 or Windows 7
- Source
- Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
- Category
- Microsoft Outlook 2016 › Security › Cryptography
Registry
msgformats
REG_DWORDUser- Enabled value
- Depends on the option value
- Element
- Support the following message formats:
| Item | Stored value |
|---|---|
| S/MIME | 1 |
| Exchange | 2 |
| Fortezza | 20 |
| S/MIME and Exchange | 3 |
| S/MIME and Fortezza | 21 |
| Exchange and Fortezza | 22 |
| S/MIME, Exchange, and Fortezza | 23 |
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\security] ; Options (use only one) ; S/MIME "msgformats"=dword:00000001 ; Exchange "msgformats"=dword:00000002 ; Fortezza "msgformats"=dword:00000014 ; S/MIME and Exchange "msgformats"=dword:00000003 ; S/MIME and Fortezza "msgformats"=dword:00000015 ; Exchange and Fortezza "msgformats"=dword:00000016 ; S/MIME, Exchange, and Fortezza "msgformats"=dword:00000017
CMD
:: Options (use only one) :: S/MIME reg add "HKCU\software\policies\microsoft\office\16.0\outlook\security" /v "msgformats" /t REG_DWORD /d 1 /f :: Exchange reg add "HKCU\software\policies\microsoft\office\16.0\outlook\security" /v "msgformats" /t REG_DWORD /d 2 /f :: Fortezza reg add "HKCU\software\policies\microsoft\office\16.0\outlook\security" /v "msgformats" /t REG_DWORD /d 20 /f :: S/MIME and Exchange reg add "HKCU\software\policies\microsoft\office\16.0\outlook\security" /v "msgformats" /t REG_DWORD /d 3 /f :: S/MIME and Fortezza reg add "HKCU\software\policies\microsoft\office\16.0\outlook\security" /v "msgformats" /t REG_DWORD /d 21 /f :: Exchange and Fortezza reg add "HKCU\software\policies\microsoft\office\16.0\outlook\security" /v "msgformats" /t REG_DWORD /d 22 /f :: S/MIME, Exchange, and Fortezza reg add "HKCU\software\policies\microsoft\office\16.0\outlook\security" /v "msgformats" /t REG_DWORD /d 23 /f
PowerShell
# Common: create the key New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Force | Out-Null # Options (use only one) # S/MIME New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Name 'msgformats' -PropertyType DWord -Value 1 -Force | Out-Null # Exchange New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Name 'msgformats' -PropertyType DWord -Value 2 -Force | Out-Null # Fortezza New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Name 'msgformats' -PropertyType DWord -Value 20 -Force | Out-Null # S/MIME and Exchange New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Name 'msgformats' -PropertyType DWord -Value 3 -Force | Out-Null # S/MIME and Fortezza New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Name 'msgformats' -PropertyType DWord -Value 21 -Force | Out-Null # Exchange and Fortezza New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Name 'msgformats' -PropertyType DWord -Value 22 -Force | Out-Null # S/MIME, Exchange, and Fortezza New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\security' -Name 'msgformats' -PropertyType DWord -Value 23 -Force | Out-Null