Short answer: published email verification pricing in September 2026 ranges from about $0.35 to $19.50 per 1,000 addresses. Where you land depends almost entirely on volume – rates fall steeply as you buy more – and on whether the provider bills you for catch-all and unknown results.
Why the same job has a 50x price range
Verification is priced per address, and almost every provider discounts hard at volume. ZeroBounce charges $19.50 per 1,000 for a 2,000-credit purchase and $3.20 per 1,000 at one million – the same engine, the same check, a six-fold difference in rate.
So a headline rate means nothing without the volume attached to it. Compare at the volume you actually intend to buy.
Published rates per 1,000, by volume
| Provider | Small buy | 100K | 1M |
|---|---|---|---|
| EmailListClean | $0.40 (250K) | – | $0.35 |
| MillionVerifier | $1.78 (50K) | $1.49 | $0.45 |
| DeBounce | $3.00 (5K) | $1.35 | $0.75 |
| Clearout | $8.00 (5K) | $4.00 | $1.40 |
| Bouncer | $8.00 (1K) | $4.00 | $2.00 |
| Emailable | $7.60 (5K) | $4.20 | $2.10 |
| Kickbox | $10.00 (500) | $5.00 | $3.00 |
| ZeroBounce | $19.50 (2K) | $6.49 | $3.20 |
| NeverBounce | $8.00 (1K) | Quote only | Quote only |
All figures read from each provider’s own pricing page in September 2026. EmailListClean’s entry tier is 250,000 emails at $100; it does not sell a 5,000-credit pack, which is why the small-buy column is not directly comparable.
The three things that change your real cost
1. Catch-all and unknown billing
This is the largest hidden variable. A verifier cannot definitively resolve an address on a catch-all domain, and on B2B lists those can be 20-30% of the file.
Most providers do not bill for unknowns. DeBounce charges 10 credits per catch-all validation instead of one. On a 100,000-record B2B list that is 25% catch-all, the effective cost is 325,000 credits – more than three times the headline.
2. Subscription vs pay-as-you-go
Subscription rates look cheaper per 1,000 but only if you use the full monthly allowance. NeverBounce’s Growth plan is $49 a month for up to 10,000 verifications – $4.90 per 1,000 at full usage, $9.80 if you use half. Clearout’s annual Pro plan is $32 a month for 10,000 credits on the same logic.
List cleaning is lumpy work. Most senders clean quarterly, which means a monthly subscription is usually the wrong instrument unless you are verifying continuously at signup.
3. Credit expiry
NeverBounce credits expire 12 months after purchase. Emailable, MillionVerifier and Clearout state their credits do not expire. If you buy at volume for the discount and then use them slowly, expiry converts a discount into a loss.
What a real cleaning job costs
Take a 250,000-address list, a common size for an established sender:
- EmailListClean: $100
- MillionVerifier: roughly $373 at its 100K rate, less at its unpublished 250K tier
- Bouncer: $750
- Emailable: $750
- Kickbox: $1,100
- ZeroBounce: $1,299
Set that against what the list costs you unclean. If 15% of those addresses are dead – a normal figure for a list that has never been verified – you are sending 37,500 messages into nothing on every campaign, and paying your ESP for the privilege while your bounce rate tells Gmail you do not maintain your list.
Questions to ask before buying
- What is the rate at my volume, not the advertised entry rate?
- Am I billed for catch-all results? For unknowns? For duplicates?
- Do credits expire?
- Does the API draw on the same credits, or is it a separate product with its own fee?
- What is the API rate limit on my tier, and will it throttle my signup form?
- Is there a refund or remedy attached to the accuracy guarantee, or is it just a number?
A provider that answers all six plainly on its pricing page is usually the one that will not surprise you on the invoice.
Transparent volume pricing: 250,000 emails for $100, 500,000 for $180, one million for $350, two million for $720. No subscription, no expiry. Start with 100 free credits or see the pricing table.
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