EmailZeno EmailZeno

Pricing

Credit-based pricing — pay only for what you verify.

Start free with 300 verifications. Upgrade when you're ready. No seats, no contracts, no hidden fees.

Subscription plans

Free

Free forever

300 verifications included

Explore the platform with no strings attached.

  • 300 verifications included
  • Single-address REST API
  • Real-time SMTP probing
  • Basic confidence scoring
  • Community support
Start free

Normal

$14 / mo

100,000 verifications / month

For senders with a steady volume who want fast bursts.

  • 100 000 verifications / month
  • Up to 10 emails / second
  • CSV + XLSX upload + REST API
  • HMAC-signed webhooks
  • All ESP integrations
  • Priority email support
Get Normal
Credits never expire
Unknown results are free
Cancel anytime
Email support on all plans

Need higher volume? Contact us for custom credit-pack pricing.

Top-up credit packs

One-time. Credits never expire.

No subscription. Buy credits, use them whenever — months or years later.

10,000 Credits

$49.00 one-time

10,000 credits · never expire

  • 10,000 credits
  • Credits never expire
  • 50% cheaper than TrueList
Buy 10,000 credits

50,000 Credits

$119.00 one-time

50,000 credits · never expire

  • 50,000 credits
  • Credits never expire
  • Save vs 10k pack
Buy 50,000 credits

500,000 Credits

$625.00 one-time

500,000 credits · never expire

  • 500,000 credits
  • Credits never expire
  • Save vs 100k pack
Buy 500,000 credits

1,000,000 Credits

$999.00 one-time

1,000,000 credits · never expire

  • 1,000,000 credits
  • Credits never expire
  • Best value at scale
Buy 1,000,000 credits

Pay your way — Polar (cards & wallets), Payssion (local methods), or Cryptomus (BTC, ETH, USDT, more).

Feature comparison

Everything in each plan

Feature Free Normal Unlimited
Verification
Verifications / month 300 100 000
Real-time single-address verify
Async bulk jobs (CSV / XLSX)
Syntax + disposable filter
Role-address flagging
MX record validation
SMTP handshake probe
Confidence score (0–100)
Catch-all detection
Credit refund on unknown results
Throughput & Rate Limits
Verification rate 1 / minute 10 / second
Per-domain concurrency (anti-block) 5 5
Soft-block auto-cooldown (30 min)
API & Integrations
REST API access
OpenAPI spec
HMAC-signed webhooks
ESP integrations
API key management in dashboard
Security & Compliance
EU-hosted (Nuremberg)
Data encrypted at rest
Auto-purge after 30 days
DPA available
Support
Community support
Priority email support

FAQ

Pricing questions answered

The Unlimited plan gives you an unmetered monthly quota at a flat $42/month — no credit counters, no overage fees. A fair-use cap of 3 emails per second applies to prevent a single tenant from monopolising shared SMTP capacity. In practice that's ~260k verifications per day; if you routinely need more, contact us about a custom plan.

Monthly plan credits reset at the start of each billing cycle — they do not roll over. However, any credit packs you purchase separately never expire and are consumed only after your plan allowance is used up.

Addresses that return a catch-all response (the server accepts everything) or that we cannot definitively probe within our timeout are marked "risky" or "unknown". Unknown results do not consume credits — only verified addresses do.

Yes. Upgrading takes effect immediately and you receive prorated credit for the unused portion of your current plan. Downgrading takes effect at the end of the billing cycle.

We don't offer time-limited trials — instead, the Free plan gives you 300 real verifications to evaluate accuracy. When you're ready, upgrade at any time with no commitment.

Yes. Credit packs are available as one-time purchases from your billing dashboard. Packs are consumed after your plan allowance and never expire.

Annual plans are billed as a single upfront payment with roughly 17% off versus monthly. Cancel within 14 days for a full refund.
Free forever — no credit card

Clean lists ship faster.
Start free.

300 verifications /mo · five-minute API integration · credit refund on hard bounces. Trusted by senders who treat sender reputation like the asset it is.