You can add a disclaimer message only to outgoing email messages.
First key:
Path: HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\ScanMail for Exchange\CurrentVersion
Key: EnableDisclaimer
Type: REG_DWORD
Data value: 0 - Disable, 1 - Enable
Second key:
Path: HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\ScanMail for Exchange\CurrentVersion
Key: DisclaimerSource
Type: REG_SZ
Value: The full path of the disclaimer content file.
For example, C:\Data\Disclaimer.txt
By default, WFBS will detect if an outbound mail is sent to the internal or external domains, and add a disclaimer to each mail sent to the external domains. The user can overwrite the default setting and add a disclaimer to each outbound mail except the domains included in the following registry key:
Third key:
Path: HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\ScanMail for Exchange\CurrentVersion
Key: InternalDomains
Type: REG_SZ
Value: Type the domain names to exclude. Use a semicolon (;) to separate multiple items.
For example: domain1.org;domain2.org
The domain names here are the DNS names of the Exchange servers.