Help with ssl transactions

I am having trouble communicating to a payment gateway site using php to transmit data on port 443 (ssl) using cURL. The script simply times out. I made some test scripts to try and find the problem. Here is what I found:

I can communicate via SSL with some domains (such as godaddy.com, starfieldtech.com), but not others (such as my payment gateway, adwords.google.com, and others) - it times out. Now, when I try and communicate with a non-existant server (foo.starfieldtech.com), the script acutally returns an error.

My guess is that it looks like port 443 is set up to block all but allow domains on a specific list. I tried talking to the tech guys at the hosting company and they insist this is not the issue, and they blow me off.

Is there anything else it could be? Is there a better way to test this? (I don't have shell access)

 

 

 

 

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