Platform SDK: CDO for Windows 2000 |
A USENET control command.
urn:schemas:mailheader:control
CdoMailHeader.cdoControl
DBTYPE_STR
[Visual Basic] String
[C++] BSTR
Messages with a Control header are deemed control messages by NNTP services. Control messages are used for communication among USENET host machines, not to be read by users.
Cancel <123456@microsoft.com>