I need to POST XML data (via an ASP application) to an entity who has provided me a spec that seems a bit incomplete and their tech support is of no help. The spec says (to summarize) that "the user system (my app) will transmit the XML data through an HTTPS URI using a digital certificate".<BR> Is it evident whether the application will use a server or a client certificate? Since my server is POSTing data to their server I would assume that I need a client certificate. However, I&#039;m being told that I need a server certificate. If that&#039;s the case, how do I forward my server certificate to the URI I&#039;m POSTing to.<BR> Am I insane or incredibly naive? Can you even tell from the little information I&#039;ve (been) given? Any additional links or resources would be appreciated. I&#039;ve dug up very little info on Server to Server XML/SSL stuff.<BR>