Compare

Same validation quality.
A fraction of the price.

We don't hide behind marketing copy. Here's how MailSentry stacks up against the tools most teams evaluate — with honest numbers from each vendor's public pricing.

Side-by-side

The numbers, not the marketing.

One row per decision-point. One column per vendor. Make your own call.

Feature
MailSentryBest value		ZeroBounceNeverBounceKickbox
Free plan1,000 / mo recurring100 / mo recurring1,000 one-time100 one-time
10K checks / month$9$99$49$80
50K checks / month$29$379$99$400
Per-check cost (10K)$0.0009$0.0099$0.0049$0.008
All features on FreeYes — every layerLimitedLimitedLimited
Quality scoring0–100, every planAI, may need add-onAI, higher plansProprietary, standard
Catch-all handlingLocal-part scoringFlag onlyFlag onlyFlag only
Typo correctionAutomaticStandardAutomaticStandard
Accuracy guarantee≤3% bounce or creditNot published≤3% bounce refund≤5% bounce guarantee
Setup time30 secondsMinutesMinutesMinutes

Competitor pricing reflects publicly listed rates as of April 2026. Plan details may vary by region, annual commitment, or negotiated contracts.

Deep dives

See the full breakdown.

For each competitor, a focused head-to-head on features, pricing, and the billing model — with sources you can verify.

MailSentry vsFeature & pricing comparison

ZeroBounce

The premium incumbent

Broad feature set, but plans lock quality scoring and bulk tools behind upgrades — and you're renting pay-as-you-go credits instead of a monthly subscription.

Read the comparison
MailSentry vsFeature & pricing comparison

Kickbox

The industry veteran

Rock-solid deliverability tooling with a long track record. Higher per-check cost, stricter feature tiers, and a one-time 100-credit trial instead of a recurring free plan.

Read the comparison
No feature gates

Quality scoring, bulk CSV, email finder, and webhooks ship on every MailSentry plan — including Free.

Honest pricing

Flat monthly rate. No per-check add-ons. No introductory price that doubles after month one.

30-second setup

Sign up, copy API key, send your first request. No approval process, no sales call.

GDPR committed
≤3% bounce guarantee
Every feature, every plan

Stop bad emails. Pay 80% less.

Start freeTalk to sales
1,000 free checks/moNo credit card≤3% bounce guarantee