IsSigned Property

[This is preliminary documentation and subject to change.]

Indicates if email has digital signature. (Read-only)

[Visual Basic,VBScript]
Property IsSigned As Boolean
[C++]
HRESULT IsSigned(VARIANT_BOOL* varIsSigned);
[IDL]
HRESULT IsSigned([out, retval] VARIANT_BOOL* varIsSigned);

Remarks

(Read-only)

When you write script or COM actions and conditions for an OnReceive transition, you need to be able to check the authenticity of received email. The workflow engine checks incoming email for:

• digital signature
• message tampering
• digital signature is trusted
• 'from' matches digital signature

Your script or COM actions and conditions can use the IsSigned property to make decisions on how to handle incoming email. The IsSigned property relates to the IsIntact, IsAuthenticated, and IsTrustedSig properties. The workflow engine treats these properties hierarchically, so false values propagate downward through the hierarchy. For example, if 'IsSigned' is false, then the rest of the properties are false too. The following table shows the only possible combinations of values for these properties.