IMailMsgProperties::PutProperty

Platform SDK: SMTP Server Events

[This is preliminary documentation and subject to change.]

Write a property into the MailMsg object.

HRESULT PutProperty(
   [in] DWORD dwPropID,
   [in] DWORD cbLength,
   [in,size_is(cbLength),length_is(cbLength),unique] BYTE *pbValue
);

dwPropID: Specifies the property identifier for the property to write.
cbLength: Specifies the length in bytes of the value.
pbValue: Specifies the value. If this is NULL, then the property is erased.

Value	Description
S_OK	Success.
S_FALSE	Success. The property was not present.