Bouncer review

This review reads Bouncer on its own published pages. It covers the price ladder, the billing rules, the claim it makes about unknown results, and what its data terms say. Each row can be checked against their site.

Assessed on	Our reading
Price	$8 for 1,000, $60 for 10,000, $400 for 100,000, $2,000 for a million.
Billing rules	Good. No charge for duplicates or unknown results, and credits never expire.
The accuracy claim	No accuracy percentage published. Their pages claim under 2% unknown results instead.
Extra tools	A toxicity check for risky domains and a deliverability kit.
Free allowance	100 credits, no card.
Where the data sits	Servers in Frankfurt, Germany, on AWS, per their GDPR page.
How long uploads are kept	60 days on their GDPR page; up to 365 days in their privacy policy.

Assessed from Bouncer's own pricing, GDPR and privacy pages in September 2026. Every row can be checked against their current pages.

Pricing you can read without a sales call

Bouncer's ladder is flat and public. You pay $8 for 1,000 checks and $2,000 for a million, with fixed packs in between. Nothing sits behind a form. That's a real point in its favor, because several vendors in this market hide their rates behind JavaScript or a quote.

The ladder is not the lowest you can buy. ZapBounce publishes $5 for 1,000 and $949 for a million under the same billing rules. The full breakdown of Bouncer's tiers is on Bouncer pricing, explained.

What "under 2% unknown" means

Bouncer does not publish an accuracy figure. It claims fewer than 2% unknown results instead. That is a claim about how often it gives up, not about how often its verdicts are right, and it is worth reading that way.

The share of unknowns depends on your list more than on any vendor. Yahoo and AOL accept every probe by design, so their addresses rarely reach a verdict anywhere. A file heavy with those domains will run above any headline figure. Read why Yahoo is always unknown before you judge a result.

Catch-all domains and the toxicity check

Bouncer's toxicity check reads a domain's history and flags ones that look risky. It is a different tool from a mailbox check. An accept-all domain answers yes to every recipient, so no SMTP probe can confirm one mailbox there.

ZapBounce handles that case with a second probe. It sends one to a random address at the same domain. When that is accepted too, the row comes back as catch_all, with the SMTP code the server gave. The catch-all glossary entry explains the test step by step.

Data terms worth reading twice

Bouncer's servers are in Frankfurt on AWS, which suits a buyer who wants EU hosting. Its retention wording is the part to check. The GDPR page says uploads are kept for 60 days, and the privacy policy says up to 365 days. Ask which one applies to your account.

ZapBounce keeps uploads and results for 30 days by default. You can set each API key anywhere from 0, deleted on download, to 90 days. Any batch can be deleted at once through the API.

The scorecard on Bouncer

Both columns are required here. A page that only fills one is an advertisement wearing a review's clothes.

Where Bouncer is genuinely good

A flat price ladder, public from 1,000 to a million checks.
No charge for duplicate rows or unknown results.
Credits never expire.
A toxicity check and a deliverability kit alongside the verifier.
EU hosting in Frankfurt for buyers who need it.

Where Bouncer falls short

No accuracy percentage published, only a claim about the unknown share.
Two different retention periods, 60 and 365 days, on two of its own pages.
The 100 free credits arrive once, not each month.
$8 for the first 1,000 checks and $2,000 at a million.

What no price list or review settles

What decides the real cost of Bouncer

A rate card describes what an address costs to check. It says nothing about the addresses that come back with no verdict. On a genuine B2B list roughly 28% sit on accept-all domains, where the server accepts every recipient by design. No SMTP check resolves those at mailbox level, at any price. ZapBounce returns them as catch_all and tells you the share up front.

Yahoo and AOL accept every recipient probe deliberately, to stop people mapping their users, so those addresses come back unresolved whichever vendor you pay. ZapBounce never bills an unknown, so an unresolved address costs you nothing. Gmail and Microsoft 365 throttle or refuse probes arriving from cloud ranges, for every vendor.

Pristine spam traps are indistinguishable from working mailboxes at the protocol level. No product removes them and none of the figures on this page changes that. Any vendor claiming trap removal is selling you a probability with the word removal attached.

Questions about Bouncer

Is Bouncer a good email verifier?

Bouncer is a solid verifier with fair billing rules: no charge for duplicates or unknowns and credits that never expire. Its prices run from $8 for 1,000 to $2,000 for a million, read in September 2026. ZapBounce keeps the same rules from $5 for 1,000.

Is Bouncer accurate?

Bouncer publishes no accuracy percentage. It claims fewer than 2% unknown results, which measures how often it returns no verdict. Run a sample of your own list and count the rows with no verdict.

Where does Bouncer store data?

Bouncer's GDPR page says its servers are in Frankfurt, Germany, on AWS. Its GDPR page gives 60 days of retention and its privacy policy says up to 365 days.

How does Bouncer handle catch-all emails?

Bouncer adds a toxicity check that scores a domain's risk. ZapBounce probes a random address at the same domain and labels the row catch_all when the server accepts that too.

Run one real list through Bouncer and through ZapBounce, then count the rows with no verdict and the price of each file. Our pricing and the comparisons hub have the rest.

We publish our own ladder

Every tier on one page, 100 free checks a month with no card, and an unknown result is never billed. Read it beside Bouncer’s, which we checked in September 2026.

See our pricing ZapBounce vs Bouncer