You will need your own server for this. You will need your own website that can send out emails to a, say, mock-up opt-in list. You will need to provide a DEMO to us how you did this. You will need to provide proof it is working fine for your case, to convince us you could do it. Download the zip folder attached to this email. Indeed, this software, when installed on your site, enables you to detect email ids of the bounced back emails that your site has sent out. If it detects and could return the return codes of the bounced categories (mentioned in the zip folder), then we will learn from you how you installed the software to detect email ids of the bounced back emails that you had sent to some members of your opt-in list.
Download the attached zip folder, and then configure the files on your server and on your php files for your website. If you succeed, as we said, we are keen to have you demo to us. You can write statements on your script, so we can take a look to rationalise the logic. You need to know how to handle your server like a system admin because you need to configure files on your server, and yet also be able to handle php language for this because you need to code your php script to read the email ids of the bounced back emails from your cpanel.
Those who are able to provide proof they did it will be viewed in favour over those who just make a bid !!! You CAN SHOW A TABLE ON YOUR WEBSITE WITH EMAIL IDs IN A LONG LIST captured in real time, that are from the sent out by your site to some members but which bounced back. You should show the return code of the bounced categories also in the table, which will appear if you had installed the API correctly.