Respected seniors, here is a senario, i have three websites i collect payment from through two paypal one smf forum which uses its subscription system and i have added its url to paypal(1) IPN so that automatic subscription occurs second is a website where i take money for some offers and somebody has developed website for me so he has used some url return method so auto validation is possible in that too on account paypal (2) third is adsense clone which also needs its ipn to be added to my paypal which is not possible as i have already added ipn in paypal(1) and i am worried if i add its ipn to paypal(2) than it might distrub my second website which uses some url return method. what i want to know is is it possible that i can add my paypal(1) email to my second site means i collect payment from smf forum also through ipn and through url forwarding for second website too. its bit confusing but please try to think about it as i am totally out of my mind on this .