I cannot get IPN to communicate with the Paypal.pl script on my server side (hosted by Earthlink which is no help because they are promoting their own e-commerce package). I've been at this for the past day and a half, and can't get it to work, so I truly would appreciate any help an expert can provide. My website is located at www.k12tlc.net with cgi scripts located in www.k12tlc.net/cgi/, and .htpassword located in www.k12tlc.net/data/. I have run many cgi scripts using this configuration, and the permissions are all set at 755. I initially wanted to run in a secure environment, but gave up on that hoping on settings would be a little easier to create. When I test EliteWeaver I get: Target IPN Script: http://www.k12tlc.net/cgi/paypal.pl HTTP Status: HTTP/1.1 500 Internal Server Error IPN Received: Your script did not reply! When I test it live my logs give me: 64.4.241.140 - - [19/Feb/2004:08:36:12 -0800] "POST /cgi/paypal.pl HTTP/1.0" 500 369 "-" "-" [Thu Feb 19 08:36:12 2004] [error] [client 64.4.241.140] Premature end of script headers: /www/htdocs/domains/s7/01139/www.k12tlc.net/webdocs/cgi/paypal.pl My Paypal.pl file was downloaded from Paypal.com, and I have made not any modificationd except to enter the required items, and to change the setting for the PERL to the local Earthlink location. Here are the script settings: #!/usr/local/bin/perl use strict; # Modules use CGI::Carp; use CGI qw(:standard escapeHTML); use LWP::UserAgent; # CGI.pm versioning issue $CGI::USE_PARAM_SEMICOLONS = 0; # Revision Notes # 09/20/01 - initial release # 10/24/01 - added error emails for flock and seek failures # 01/09/02 - changed email support to sendmail # Version Number # 1.2 # © 2002 PayPal, Inc. and others. All rights reserved. # This code is subject to the Terms and Conditions in # the accompanying Beta Software License Agreement # User Constants - customize these to YOUR installation (see manual) # ------------------------------------------------------------------- # Set this to the path of your .htpassword file my $PASSWORD_FILE = 'www.k12tlc.net/data/.htpassword'; # Set this to the path of your processed_txns file my $TRANSACTION_FILE = 'www.k12tlc.net/data/processed_txns'; # You only need to change this if you are running with https # see the manual for details my $PAYPAL_URL = 'http://www.paypal.com/cgi-bin/webscr'; # If you have an initial trial period set it here. For example one # month would be '1 M' my $PERIOD1 = '1 W'; # If you have a second trial period set it here. For example one # month would be '1 M' my $PERIOD2 = ''; # Set this to your recurring or normal period. For example one # month would be '1 M' my $PERIOD3 = '1 Y'; # Set this to the dollar amount for your initial trial period. For # example a free trial would be '0.00' my $AMOUNT1 = '$3.00'; # Set this to the dollar amount for your second trial period. For # example a $1.00 trial would be '1.00' my $AMOUNT2 = ''; # Set this to the dollar amount for your recurring or normal period. # For example $1.00 would be '1.00' my $AMOUNT3 = '$36.00'; # Set this to the path of sendmail. On Linux and FreeBSD systems this # is typically '/usr/sbin/sendmail', on Solaris systems it is usually # found at '/usr/lib/sendmail' my $SENDMAIL_PATH = '#!/usr/lib/sendmail'; # Set this to the email address you'd like to have error notification # messages sent to my $ADMIN_EMAIL = 'mark@k12tlc.net'; # Set this to your primary PayPal email address my @PAYMENT_EMAILS = ('mark@k12tlc.net'); # ------------------------------------------------------------------- Any suggestions would be greatly appreciated. Thanks. Mark My current IPN URL is set at <http://www.k12tlc.net/cgi/paypal.pl>