How many emails?
| Option | Cost | Per email | vs MailExchange | Notes |
|---|
Pay-as-you-go pack prices from each vendor's pricing page, checked 2026-10-17. * Sending-tool verifiers are estimated from their per-credit price (Instantly: 0.25 credit per lead on annual Growth or Hypergrowth credits; Smartlead: $32 per 6,000 add-on). Actual cost depends on your plan.
Price per email isn't the whole cost
- Unknowns: if you're charged for addresses the verifier couldn't check, the real price per answer is higher.
- Expiry: credits that expire after 2 or 12 months cost more if you don't use them all.
- Catch-alls: a verifier that passes catch-alls as "valid" looks cheaper until the bounces arrive. See catch-all emails.
Full tables: email verification pricing compared, and our pricing.