Clean your lead lists before you pay to contact them.
Upload a CSV of leads. LookupDock marks every email and phone number: dead domain, throwaway inbox, role address, invalid or impossible number, so you stop paying to email and call records that can't convert.
What it flags today
- Addresses whose domain can't receive mail.
- Throwaway inboxes: about 9,900 known domains, refreshed weekly.
- Role addresses such as
info@andsales@, flagged so you can route them, not dropped. - Malformed and impossible phone numbers in every country, with mobile, landline or VoIP outside the US and Canada.
Map your email and phone columns in one upload. Every row comes back with both results, an allow, review or block recommendation, and the reasons.
A list of 5,000 leads with email and phone uses 10,000 of your 20,000 monthly checks. Each completed live check uses 1 credit.
Coming next, early access
Early-access members get a founding price and first access when each check goes live.
Get early access to mailbox and carrier checks
We'll reply personally. Nothing is charged for checks that aren't live yet.
What it checks, and what it doesn't
Checks today
- Email syntax, mail-domain DNS, disposable, role and free-provider flags.
- IP location, network owner, 13 major cloud and hosting networks, and Tor exits.
- Phone validity, format, country, and number type outside the US and Canada.
Coming soon
- Mailbox verification
- Live carrier and US/Canada line type
Not offered: VPN detection.
Signals help you decide; they don't prove fraud or identity.
Removing dead domains and throwaway addresses reduces bounces, but doesn't guarantee inbox placement. Checking a number doesn't establish consent to contact it.
