Definition
Email verification pings a mailbox to check whether it is real and deliverable, before it is added to a cold campaign.
Why it matters
Sending to invalid addresses drives up bounce rate, which is the fastest way to destroy sender reputation.
How it works
- Run the full list through a verifier such as NeverBounce, MillionVerifier, or Debounce
- Keep only valid and safe to send addresses
- Discard catch all, invalid, and unknown results
Want us to run this for you?
Lead Engine builds outbound engines for B2B teams. Cold calling, cold email, and appointment setting, run by US based reps.