I created a tool that eliminates spam emails completely. Where to go from here?

I have built a tool that eliminates spam emails. It uses a pretty simple process.

    1. Checks your emails address for payments to it.
    1. Get the receipts.
    1. Check for emails with the payment receipt included
    1. Send those emails to your First Class Gmail Inbox instead of the traditional inbox.

What should I do now? I would like to pitch investors and other companies to adopt the tech. But, where should I go in your opinion?