01PRICING

Kickbox pricing and Kickbox cost per verification, per pack and per deliverable email

Kickbox charges per verification with no subscription: $10 for 1,000 checks, $70 for 10,000 and $2,999 for a million, after 100 free. Unknown results are refunded, risky ones such as catch-all addresses are billed, and credits expire a year after purchase.

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Check one address against its mail server before you buy anything.

CheckResultWhat it means
MX hosts
Provider
Receives mail
Disposable domain
02THE NUMBERS
An email marketing manager comparing two vendor invoices with a calculator at her desk

Kickbox credit packs and prices

The prices below come from kickbox.com/pricing as it reads in October 2026. Several reviews ranking for this search still show an older, higher ladder, for example $80 for 10,000 and $4,000 for a million. Kickbox has cut its prices since, so check the vendor page the day you buy.

VerificationsPricePer verification
100 Free n/a
500 $5 1.00 cent
1,000 $10 1.00 cent
2,500 $25 1.00 cent
5,000 $40 0.80 cents
10,000 $70 0.70 cents
25,000 $150 0.60 cents
50,000 $275 0.55 cents
100,000 $500 0.50 cents
250,000 $1,100 0.44 cents
500,000 $1,800 0.36 cents
750,000 $2,400 0.32 cents
1,000,000 $2,999 0.30 cents

Above a million verifications Kickbox moves to enterprise pricing on a quote. The page also mentions volume discounts on request. Every pack includes the API, bulk list upload and the same support; you are buying volume, not features.

How much does Kickbox cost per month?

Nothing fixed. Kickbox is pay-as-you-go, so the monthly cost is whatever you verify. A team cleaning a 10,000 contact newsletter list once a quarter spends $280 a year. A SaaS product that verifies 5,000 signups a month through the API buys a 50,000 pack for $275 and a 10,000 pack for $70 and covers the year for $345.

The catch is timing. Credits expire one year after purchase, according to Kickbox's help documentation as quoted by DeBounce and 1lookup. The million pack at 0.3 cents a check only beats the 100,000 pack at 0.5 cents if you really use most of it within twelve months.

Which Kickbox results you pay for

Kickbox returns one of four results. This is where the real price of a B2B list is decided, because the share of risky rows varies far more than the pack price.

DeliverableBilled

The receiving server said the mailbox exists. Safe to send.

UndeliverableBilled

The mailbox does not exist or the syntax is broken. Remove it.

RiskyBilled

Accept-all (catch-all) domains, disposable services and role inboxes. Often a fifth or more of a B2B list.

UnknownRefunded

No answer from the mail server. The credit comes back and you can retry later.

The unknown refund is fair and not universal. NeverBounce publishes no exemption at all, and ZeroBounce exempts unknown and duplicates but bills catch-all, much like Kickbox. MillionVerifier is the outlier that does not bill catch-all or unknown. More on how each one bills is in our best email verifier for cold email comparison.

What one deliverable email really costs on Kickbox

Take a 10,000 row B2B export for a cold campaign. A typical split looks something like 70% deliverable, 20% risky (mostly catch-all), 7% undeliverable and 3% unknown. Kickbox bills 9,700 of those checks and you buy the 10,000 pack for $70.

Deliverable shareDeliverable rowsCost per deliverable on a $70 pack
85%, fresh list8,5000.82 cents
70%, typical B2B export7,0001.00 cent
50%, old or catch-all heavy5,0001.40 cents

These splits are illustrations, not Kickbox data. Run your own sample first. Even at the worst line Kickbox stays cheap for pure list cleaning, and we will say it plainly: if all you need is to clean a list you already own, Kickbox costs less than our plans. Our Starter plan works out to 4.9 cents per verified row and Growth to about 3 cents, and we do not run mailbox checks at the mail server, which Kickbox does.

If the verification call sits inside your signup form, the API becomes part of your product. An uptime monitoring service that checks APIs every 30 seconds tells you when that call starts timing out, before the form quietly accepts every typo for a weekend.

Kickbox compared with other email verifiers

Prices for 10,000 checks, read from each vendor's page in our earlier breakdowns.

Verifier10,000 checksCatch-all billedCredit expiry
Kickbox$70Yes, as risky12 months
MillionVerifier$39NoCheck the vendor page
Bouncer$60Only unknown is listed as freeCheck the vendor page
NeverBounce$8 per 1,000 pay-as-you-goYes12 months
ZeroBounce$129YesNever
EmailExtractorPlan based, from $49 for 1,000 verifiedNo catch-all check; only verified rows countMonthly limit

Full numbers and sources sit in the NeverBounce pricing and ZeroBounce pricing breakdowns.

Is Kickbox worth it?

Kickbox fits

Marketing teams cleaning newsletter or customer lists, and developers verifying addresses at signup through the API. Mostly consumer or mixed domains, few catch-alls, and a volume you can use inside a year.

A finder with verification fits

Outbound teams who need to find the address first, with proof from the company's own website. Use the email finder by name for people you have picked, or the bulk email verification upload where only verified rows count.

Kickbox pricing questions

How much does Kickbox cost?

Kickbox sells pay-as-you-go verification credits. 1,000 verifications cost $10, 10,000 cost $70, 100,000 cost $500 and 1,000,000 cost $2,999, with quotes above that. The per-address price falls from 1 cent at small packs to 0.3 cents at a million. There is no required monthly subscription and API access is included.

Is Kickbox free?

Kickbox gives every new account 100 free verifications. That is enough to test the API or check a handful of addresses, not to clean a real list. After that you buy a credit pack, starting at $5 for 500 verifications.

Do Kickbox credits expire?

Yes. Kickbox's help documentation, as quoted by several reviewers, says purchased credits expire one year after the purchase date and are non-refundable. Buy the pack that matches the next twelve months of real volume, not the largest discount tier, or the unused part of the cheaper per-credit price is lost.

Does Kickbox charge for unknown results?

No. Kickbox refunds the credit when it cannot return a definitive result, so unknown addresses are free and can be re-verified later. Risky results are billed. In Kickbox terms risky includes accept-all (catch-all) domains, disposable addresses and role addresses such as sales@ or support@.

Does Kickbox have a monthly plan?

Kickbox's pricing page lists credit packs only, from 500 to 1,000,000 verifications, plus an enterprise quote for larger volumes. Some third-party reviews mention a monthly plan, but it is not on the vendor page today. Treat any monthly price you read elsewhere as something to confirm with Kickbox sales.

Is Kickbox worth it?

For cleaning a list you already have, yes. At 0.7 cents a check for 10,000 it is one of the cheaper verifiers with a good API. It is weaker value on catch-all heavy B2B lists, because accept-all rows are billed as risky, and it does not find new addresses, so it covers only half of an outbound workflow.

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