This is a classic product failure. I went to your page and don't know what problem you're solving of mine. I've adopted a zero-inbox policy for the last several years. What problem are you solving?
Not trying to be a d*, just providing feedback, if you changed your landing page to identify the problem you're solving, it would make more sense. If it's a problem I'm unaware of, you need to convince me that this is a problem I should be worried about.
In the 15s I spent on your site, I couldn't figure out what you guys do, other than you're going to do something with my email (my most personal, prized possession on the internet).