Hello guys is me again with another fresh tutorial on mailchimp api 3.0 this tutorial will help you to verify existing email on a mail chimp list, it will check if an email is subscribed on a particular list on your mail chimp account. Here is the solution, if you ever wondered why. Alright follow the steps and you do just fine or download to try it out yourself.
First get your Mail Chimp API credentials by signing into your mail chimp account
Click create a key to auto generate new API key, we are going to use it later.
Now the next is to get the list ID were users are subscribed to, select your favorite list.
Now soon as you click arrow a menu will display select SETTINGS.
There you find the list ID, Note will are going to use it later on.
First we are going to have two files let called them
This php file contain subscriber form and validating form for existing subscribers and new subscibers.
Action page contain php scipt for validating the subscriber if user is subscribed or not.