I’m using the paypal sandox with debugging enabled. The test merchant account has IPN enabled and pointing to the /transactions page on my site. I even check the log file under /uploads/espresso/logs and I can see the IPN hits coming in with no errors.
Enabled paypal.ipn_results.log … and I’m seeing this exception:
“Errors resulting from the execution of curl transfer: SSL certificate problem: unable to get local issuer certificate[05/29/2013 10:54 PM] – FAIL: IPN Validation Failed . /cgi-bin/webscr : http://www.sandbox.paypal.com”
Now I just need to know how to resolve it 🙂 Any ideas?
The last error you’re seeing there is likely from a CA cert bundle not being installed on the server, or there’s a permissions issue so it can’t be read. Your host may be able to get that up and running. If not, you can download a cacert.pem file from here:
then upload it to your server. Then in the php.ini file you can point to the location of the pem file like this:
curl.cainfo = /path/to/your/cacert.pem
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