[BillSims]

I continually get emails "thanks for signing up" where someone gave a [e-mail] and they happened to pick my email id. Ah, the stories I could tell. I've spent years trying to convince some places that I didn't sign up. I don't know how common this, but I suspect it isn't rare. It doesn't sound like your service can avoid that problem. Please think if you could find a way to overcome that too. Thank you

[nitinksaas]

Yes when i was going through email verification problems, I came to know that someone uses our email id to register on some portals. But unfortunately, so far, our service primary focus on checking if an email can be delivered or not. Still thank you for providing your insights.