"Or" the PR_RECIPIENT_TYPE with MAPI_SUBMITTED (0x80000000), e.g. MAPI_TO
(0x1) becomes 0x80000001.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"Arcady" wrote in message
...
Hi, I'm working on an addin for outlook that sends the messages to some of
the recipients by https in the Send event.
The addin is written in Delphi.
I would like the transport to skip the recipients I that have been already
processed by the client.
Removing the recipients is not good, since I want them to appear in the
sent
items.
Can I acheive my goal by setting the PR_RESPONSIBILITY property to 1 for
the
processed recipients in the Send event ?

Thanks,
Arcady.