It could be that Outlook resolves the SentOnBehalfOfName property to the
relevant PR_SENT_REPRESENTING_xxx properties before ItemSend is called.
Did you try to set PR_SENT_REPRESENTING_xxx properties explicitly using
MAPI?

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

"Oliver Giesen" wrote in message
...
Dmitry Streblechenko wrote:

SentOnBehalfOfName property is only applicable if you are using an
Exchange server. Is this the case?

Yes, it is. Setting SentOnBehalfOfName at an earlier stage, e.g.
Inspector.Activate works fine but is not what I want in this particular
case.

Cheers,

--
Oliver
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