How to secure the Sign Up form?

[jesse920]

Hello,

How can I integrate Listmail Pro to my payment processor (Paypal/Clickbank) to email automatically, and securely an ecourse via email?

The way I'm thinking, the customer purchases (either with Paypal or CLickbank) is redirected to a "thank you" page which contains the signup code (Listmail) and then is sent the weekly lessons automatically by listmail.

However, what if thieves start passing the "thank you page" around - anyone signing up is automatically given the lessons with no control or reporting from Listmail Pro.

So, how can I protect the "signup code/thank you page" from unathorized access?

Any thoughts, php script, or 3rd party software to integrate with Listmail Pro?

Thanks!

[mr.trevor]

Hi,
PayPal, at least, have an authentication system that involves various secure handshakes to ensure that access can only be given from their payment processor. There are details about setting this up on the PayPal site.
I don't know how this is done using ClickBank though.
I hope this is of some use.
I expect others here will know more than I do about these things.

[DW]

PayPal is easier than ClickBank, but both are possible with some custom script which takes some programming knowhow.

The way I do it with ListMail and ClickBank (the only way I figured it could/can be secured) is by storing the cbreceipt, cbpop, AND seed in a MySQL database table.  If you connect to my thank you page with a cbpop and seed that are valid and they are not  found in the database you can create your member account (and run custom operations such as add to ListMail and send welcome message).  If the member account has been created already (the verified vars are found in the database) you cannot.

With PayPal I like to use the IPN route, where PayPal notifies a specific script URL upon successful purchase.  The script can verify the sale price, etc.  With a simple invisible "open" to the signup.php URL (with the customer variables) adding ListMail to an IPN script can be done in as few as one or two lines!

All of this is quite involved and would take about 20 minutes to explain and 1-2 hours to accomplish (mostly due to ClickBank). Do you have programming experience or will you be 'outsourcing' this job?  You may want to give aMember a look, but I am not sure if they (still do not) support welcome/confirmation messages.  AShop is another paid membership management system.

Regards