Passing an XML DOM to the Send() didn't work for you?

>I am working on a messaging system. At some point I will move it to a DB of some kind, but right now I am using an "INBOX" for my database.
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>With Greg Riechert's help I was able to ween-off (sadly) my really fancy client side SMTP (a SendSMTPEmail hybrid - thanks) service.
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>So I moved to an XMLHTTP type service that forwards user info to an ASP on my server. The ASP then [re]directs that info to my inbox and the user's inbox using server side CDO.
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>But, the information I can pass is limited by the maximum URL string size. I have read that I might be able to increase the amount of data the client XMLHTTP can forward to my ASP if an XML was used instead of a URL parameter.
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>One XMLHTTP feature I have looked at is setRequestHeader. My understanding is that I can use it to designate an XML string (file?) and then embed the XML string in the XMLHTTP "send" method.
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>I would be very interested in any advice or links that will help me do this from VFP.
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>Thanx!