Hey, mailgunnner here. Thanks for the ux suggestions! On bounce rate, a bounce will happen when you collect an email address that is invalid, and then send to

Hey, mailgunnner here. Thanks for the ux suggestions! On bounce rate, a bounce will happen when you collect an email address that is invalid, and then send to it. It is basically the symptom that you can measure to know that the email is indeed invalid. By measuring a reduction in bounce rate, we've been able to determine that the validator does its job catching invalid addresses. For determining whether the email address entered belongs to the user who entered it, you can (and should) use double opt-in, where you email a confirmation link to the users.