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.
• 2. Get the receipts.
• 3. Check for emails with the payment receipt included
• 4. 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?