Setting PR_SEND_REACH_INFO for message recipients

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Apr 24, 2009
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I'm making an addIn for outlook(both 2003 and 2007) which is changing the format of the message that is sent. I have a problem with recipients receiving winmail.dat file. I have found that I need to set UseTnef to false and PR_SEND_REACH_INFO for recipients. I'm able to set the former, but I don't know how to deal with the later. Can anyone please give me a sample code or at least guidelines how to do this? I'm using standard office libraries and setting the properties using C++ MAPI.

TIA

Vladimir
 
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