Paypal IPN Auto Return URL not working correctly

I'm hoping someone can help me. I'm setting up Zen Cart for the first time (one of the best I've seen) but am having problems integrating Paypal IPN.

- I'm using ZC 1.3.8a.
- I'm on a Godaddy shared hosting server and called to confirm part 80/443 are open.
- I've checked the setup three times with Paypal and in Zen Cart.
- When I do a test check out of my test product at $.01, paypal transfers the fee between accounts correctly but the Auto Return URL opens to a blank page (but it is the correct URL with some appended parameters)

Here are the errors I see in the log file:
Mar 29 2009 20:46 -- IPN INFO - POST VARS to be sent back for validation:
To: http://proxy.shr.secureserver.net:3128
POST http://www.paypal.com/cgi-bin/webscr HTTP/1.1

Host: proxy.shr.secureserver.net

Content-type: application/x-www-form-urlencoded

Content-length: 101

Connection: close



Array
(
[cmd] => _notify-sync
[tx] => 6BH06124K34229439
[at] => zzJoz**********K2beC
)


Mar 29 2009 20:46 -- IPN FATAL ERROR :: Could not establish fsockopen.
Host Details = http://proxy.shr.secureserver.net:3128 (-1221824180) Unable to find the socket transport "http" - did you forget to enable it when you configured PHP?

http://www.paypal.com/cgi-bin/webscr
Trying again without SSL ...

Mar 29 2009 20:46 -- IPN FATAL ERROR :: Could not establish fsockopen.
Host Details = http://proxy.shr.secureserver.net:80 (-1221823772) Unable to find the socket transport "http" - did you forget to enable it when you configured PHP?

http://www.paypal.com/cgi-bin/webscr
Trying again without specified protocol ...

Mar 29 2009 20:46 -- IPN FATAL ERROR :: Could not establish fsockopen.
Host Details = proxy.shr.secureserver.net:80 (111) Connection refused

www.paypal.com/cgi-bin/webscr


What is the likely problem?

I see that you are using proxy.shr.secureserver.net:3128

You might review this

http://www.zen-cart.com/forum/announcement.php?f=3&a=10

Thank You!!! That worked like a charm.

HI There -

I tried the link above but couldn't access it (even though I am registered and looged in to the forum)

Can someone enlighten me as to what it was about? I'm have a similar problem here!

Thanks in advance
Laura

http://www.zen-cart.com/forum/showth...520#post612520