I am having problems with the SMTPREG.VBS script when attempting to register
a sink for SMTP's OnPostCategorize event. I can register the sink (with
appropriate interfaces added or changed) for OnTransportSubmission,
OnCategorize, and OnPreCategorize, but OnPostCategorize just does not seem
to work. The script displays success, but when I go back and enumerate the
sink bindings, it is not there.
Is there something different about OnPostCategorize, or is something just