Enrolment

I think something changed in PayPal's processing code. I used the code at https://www.paypaltech.com/SG2/scriptparse.php to insert into my ipn.php - and it worked:

THIS:
$header = '';
$header = "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30);

Replaced this:
$header = '';
$header .= "POST /cgi-bin/webscr HTTP/1.1\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$paypaladdr = empty($CFG->usepaypalsandbox) ? 'www.paypal.com' : 'www.sandbox.paypal.com';
$fp = fsockopen ($paypaladdr, 80, $errno, $errstr, 30);