The Cheapest Email Verification Services, Priced Per 1,000

The cheapest email verification service depends on how many addresses you have. On prices read from vendors' own pricing pages on 1 October 2026, Reoon cost least per 1,000 at 5,000 and 50,000 addresses, MillionVerifier cost least at 500,000, and DeBounce came second at all three volumes.

Below is the full table, the method behind it, and the arithmetic for the question most comparison pages skip: when a subscription is cheaper than buying credits.

How we priced it

Each figure is the cheapest single package that covers the volume, read from the vendor's pricing page on 1 October 2026. Where a page loads its prices from a script or structured data rather than plain text, we read the numbers that page loads. All prices are US dollars and exclude any promotional codes.

Two rules keep the comparison honest:

• Packages, not rates. If a vendor's smallest package is 10,000 credits, a 5,000 list costs the 10,000 price. That is what you would actually pay.
• One pass. These are prices for verifying the list once. A list you re-verify every quarter costs four times as much over a year on credits.

Cost per 1,000 at three volumes

5,000 addresses

Vendor	Package paid	Per 1,000
Reoon	$11.90 (10,000 pack)	$2.38
DeBounce	$15	$3.00
EmailListVerify	$17	$3.40
Verifalia	$28.90	$5.78
Bouncer	$35	$7.00
Emailable	$38	$7.60
MillionVerifier	$39 (10,000 pack)	$7.80
Kickbox	$40	$8.00
Mailgun (validation add-on)	$60	$12.00
ZeroBounce	$69	$13.80

At 5,000, Reoon and MillionVerifier both force a 10,000 purchase. Reoon is cheapest anyway. MillionVerifier's leftover 5,000 credits never expire, so its real cost falls if you will use them later.

50,000 addresses

Vendor	Package paid	Per 1,000
Reoon	$58.95	$1.18
DeBounce	$75	$1.50
MillionVerifier	$89	$1.78
EmailListVerify	$98	$1.96
Verifalia	$219	$4.38
Emailable	$245	$4.90
Bouncer	$250	$5.00
Kickbox	$275	$5.50
Mailgun (validation add-on)	$420	$8.40
ZeroBounce	$499	$9.98

500,000 addresses

Vendor	Package paid	Per 1,000
MillionVerifier	$299	$0.60
DeBounce	$450	$0.90
Reoon	$522	$1.04
Verifalia	$990	$1.98
Bouncer	$1,250	$2.50
Emailable	$1,350	$2.70
Kickbox	$1,800	$3.60
Mailgun (validation add-on)	$1,820	$3.64
ZeroBounce	$2,199	$4.40

EmailListVerify drops out at 500,000 because its public pay-as-you-go packs stop at 100,000 ($186).

Sources: Reoon, DeBounce, EmailListVerify, MillionVerifier, Verifalia, Bouncer, Emailable, Kickbox, Mailgun, ZeroBounce. NeverBounce is absent because its pricing page returned HTTP 403 to us on the day; Clearout is absent because its page showed no prices in its text.

Three things the per-1,000 figure hides

What you are not charged for. Reoon says unknown results are never charged. Bouncer says it does not charge for duplicates or unknowns. MillionVerifier offers a refund on results it cannot verify with certainty. ZeroBounce says it removes duplicates and malformed rows before charging. On a list with many catch-all or unreachable domains, those rules can matter more than a few cents per 1,000.

Mailgun's pricing is marginal, not per package. Mailgun charges $1.20 per 100 for the first 5,000 validations, $0.80 per 100 for the next 45,000, then $0.50, $0.35 and $0.25 per 100 on later bands. That is $12 per 1,000 at the start. It also sits on top of a sending plan, though its Scale plan ($90 a month) includes the first 5,000.

Depth costs extra at Verifalia. Its prices above are for Standard checks (1 credit). High quality uses 2 credits and Extreme uses 4, doubling or quadrupling the per-1,000 figure in exchange for more retries against slow and greylisting servers.

When a subscription beats credits

Subscriptions look cheaper per 1,000 on the pricing page. They only are if you use the allowance.

The test is one line of arithmetic:

effective cost per 1,000 = monthly price ÷ (addresses actually verified that month ÷ 1,000)

Worked example: EmailListVerify

EmailListVerify sells 10,000 credits a month for $25, and a one-off 10,000 pack for $27.

How often you clean 10,000	Subscription cost per year	Credits cost per year
Every month	$300	$324
Every quarter	$300	$108
Twice a year	$300	$54

Monthly cleaning saves $24 a year on the subscription. Quarterly cleaning makes the subscription nearly three times more expensive, because you pay for eight idle months.

Worked example: daily allowances

Reoon and Verifalia sell daily allowances. Reoon's plan starts at $9 a month for 500 credits a day. If you use every day's allowance, that is about 15,000 checks a month, or $0.60 per 1,000. If you only verify on weekdays, it is about 11,000 checks, or roughly $0.82 per 1,000. Daily credits renew each day, so a quiet week is paid for and lost.

Worked example: flat fee

A flat monthly fee with no credit allowance turns the formula upside down: the more you verify, the lower your cost per 1,000. Against Reoon's cheapest published rate at 50,000 ($1.18 per 1,000), a $30 flat fee only breaks even at about 25,000 addresses a month. Below that, credits are cheaper.

Which is cheapest for you

Your pattern	Usually cheapest, October 2026 prices
One-off list under 100,000	Reoon, then DeBounce
One-off list of 500,000 or more	MillionVerifier, then DeBounce
Steady 5,000 to 15,000 a month	A daily or monthly plan (Reoon, EmailListVerify) if you use it every month
Uneven, occasional cleaning	Credits that never expire
Signup-form checks via API	Compare API terms, not list prices; see Mailgun validation alternatives

Our verification cost calculator runs the same maths with your own volume and frequency.

Disclosure — our product

SimpleVerifier, which publishes this blog, charges $29.99 a month flat with no credits; throughput is 45 addresses per minute. By the arithmetic above it is more expensive than Reoon for anyone verifying fewer than about 25,000 addresses a month, and more expensive than DeBounce or EmailListVerify below roughly 10,000 to 15,000. It is also slower than most of the tools above on a single large file, so a one-off clean of a big list is usually better done elsewhere. See /pricing.

The takeaway

Price the package you would actually buy, at the volume you actually have, multiplied by how often you clean. Then check what the vendor does not charge for. A cheap rate on a list full of unknowns can cost more than a slightly dearer one that refunds them.