I was looking for a way to check if a number of emails are PayPal verified or not other than the API method wich seemed way too complicated for a noob like me and i found this script wich uses https://www.paypal.com/us/verified/pal= to verify email adresses
but i just don't seem to get it to work i always get Login failed.so did paypal change the login? is there any other way to do this?
The script you linked is wrong, and is meant for users browsing the PayPal website: "You must log in before you access this page.", so don't consider it.
Calling cURL with sensitive data is also not safe and exposes you to sniffing by someone else: you need to use something which has encryption built-in.
I suggest that you use the official API from PayPal: you'll need to work a little bit, but it's the best method, supported directly from the company and you'll be sure it will always work. You're working in a sensitive environment like on-line payments, so this is very important.
If you have any problem implementing the API, ask here for help ;)