Problems with Paypal IPN

[duskwood]

I see. Thanks for the explanation.

I checked my website's access logs, when notify.paypal.com tries to connect to /ipn_main_handler.php it gets a 500 error.

And here's what the IPN log says: (I removed the actual IP's)

Dec 01 2010 12:57 -- IPN PROCESSING INITIATED.
*** Originating IP: XXX
*** Browser/User Agent: XXX

Dec 01 2010 12:57 -- IPN FATAL ERROR :: No POST data available -- Most likely initiated by browser and not PayPal.

*** The rest of this log report can most likely be ignored !! ***

Dec 01 2010 12:57 -- IPN ERROR :: Could not find stored session {} in DB; thus cannot validate or re-create session as a transaction awaiting PayPal Website Payments Standard confirmation initiated by this store. Might be an Express Checkout or eBay transaction or some other action that triggers PayPal IPN notifications.

Dec 01 2010 12:57 -- IPN ERROR :: No saved Website Payments Standard session data available. Must be an Express Checkout or Direct Pay transaction.
Could be a test notification, or the incoming IPN notification is not actually a bonafide PayPal transaction.
NOTE: It is likely that all the following log content is meaningless or irrelevant.

Dec 01 2010 12:57 -- Breakpoint: 0 - Initializing debugging.

Dec 01 2010 12:57 -- Breakpoint: Flag Status:
isECtransaction = 0
isDPtransaction = 0

Dec 01 2010 12:57 -- IPN INFO - POST VARS received (sorted):
Array
(
)

[DrByte]

I checked my website's access logs, when notify.paypal.com tries to connect to /ipn_main_handler.php it gets a 500 error.

You'll need to fix whatever's causing the 500 error

And here's what the IPN log says: (I removed the actual IP's)

The actual IPs are harmless to post.

Nothing useful in that log, since it's showing that nothing was passed in to it.

[duskwood]

You'll need to fix whatever's causing the 500 error

I have no idea what's causing the errors.
I checked with my host to make sure that ports 80 and 443 were open, and that their firewall wasn't blocking any of Paypal's IP's. I checked my .htaccess files to make sure I wasn't blocking any of those IP's. Everything seems to be working.
Even my test order worked fine, got an email notification and a new order in my admin, however in Paypal's IPN history it's still "retrying".
Still, thanks for the help.

[DrByte]

Your server's apache errorlog will detail the cause of "500" errors. If you can't view that log yourself via your hosting control panel, then you'll have to get your hosting company to retrieve those details for you.
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