I'm using a Paypal IPN postback (both CURL and fsockopen have this problem):

If I use: curl_setopt($ch, CURLOPT_URL,"http://www.sandbox.paypal.com/cgi-bin/webscr");

It *works perfectly*, but it's the sandbox, once I switch the url to:

curl_setopt($ch, CURLOPT_URL,"http://www.paypal.com/cgi-bin/webscr");

It times out with no response!

I've confirmed that this is a Dreamhost issue, as I tried it on a different host and it worked fine on both sandbox and regular.

Any ideas?