TL;DR
Every business email you export from ListKit is triple-verified at the moment you export it. It costs 1 credit per lead, and the verification is included.
You don't need to verify your ListKit leads again. Running them through the Email Verifier spends credits twice.
Many lead databases rely on checks done weeks or months earlier. Checking at export reflects the address as it is today.
The Email Verifier is for lists that come from outside ListKit.
Do I need to verify my ListKit leads?
No. When you confirm an export, every email goes through our verification before it's added to your file, and bad emails are filtered out. That check is part of the 1 credit you pay per lead. If you run the same file through the Email Verifier, you pay again for a check that was just done.
When you'd use this
Read this if you're deciding whether to re-check a ListKit export, or you want to know why ListKit verifies at export instead of selling from a pre-verified database.
The problem with pre-verified databases
Many providers verify their whole database once, then sell leads from that snapshot for months. The issue:
Verification results go stale over time.
An email marked valid months ago may have closed or changed since.
You can't tell how old the check is.
This can raise your bounce rate without you realizing the cause is old data, not your targeting.
How ListKit verifies at export
You build a search and open checkout. Triple-Verified emails are required on every export and cost 1 credit per lead.
When you confirm, each email goes through waterfall verification at that moment, not from an old cached result.
Emails that fail are filtered out before your file is ready. You're only charged for the verified emails you receive.
The Email Verifier works differently: it checks lists from outside ListKit, at 1 credit per email. See How do I verify a list of emails, and how many credits does it use?
Expected outcome
Your ListKit exports are ready to use in a campaign as soon as they arrive. You save your Email Verifier credits for lists from other sources.
FAQ
Why do some leads still bounce even with verification at export?
Verification is a snapshot in time. Between the check and your send, a mailbox can close or a mail server can change. See Why is my bounce rate high and how do I fix it? for what to check.
Is Triple Verification the same as the Email Verifier?
No. Triple Verification happens automatically when you export leads from ListKit. The Email Verifier is a separate tool for checking lists from outside ListKit, and it costs 1 credit per email.
I ran my ListKit export through a verifier and some came back Risky. Should I send to them?
Yes. Risky addresses from a ListKit export passed our triple verification. Most are catch-alls that no outside verifier can confirm. See What do Good, Risky and Bad mean, and should I send to catch-all emails?