DeadLeads.io
(beta)
Email validation services "guess" if an email address is active. We know because across our network of billion of emails sent per month we know who is active in their inbox in the last 30 days. This means better deliverability, open rates, and click through rates.
We have a giant network of email publishers that anonymously report if an email address has opened an email in the last 30 days. This allows us to know what leads are dead or alive.
This is in beta, but yes it works. Here's a screenshot of a recent client's list showing how it worked.
The catch is you have to pay $0.03/email to find out which are dead and which are alive. So the question you have to ask is it worth $0.03/email to find the dead leads on your list.
Yes, we only use it to check if the lead is dead. If you prefer you can even give us an MD5 version of your email list to preserve privacy. To be clear we can't see peoples' inboxes, we are just notified by partners when someone is reading email.
Yes, we have you upload a csv file of emails or MD5 email hashes. We then send you a report showing the % of dead leads. From there, if you want to download it, you pay us and get the list sent within an hour.
Stop wasting precious dollars on bad leads. How else can you know if someone is even reading their emails?