18,492,113 emails verified · and counting

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Instant verdict on any address. Protect your sender reputation without guesswork.

100 free checks every day·No signup needed·We never store your addresses
SOC 2·GDPR·CCPA
For MarketersBulk

Clean 100 contacts at once.

Drop a CSV, download a labelled list in minutes. Deduped, flagged, ready to send.

ada@lovelace.devvalid
info@startup.comrisky
test@mailinator.comdisposable
joe@nope.invalidno MX
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For DevelopersAPI

One endpoint. JSON in, JSON out.

Real SMTP handshake, raw response exposed, <800ms p50. Addresses never stored.

curl -X POST https://api.mailtruster.com/v1/verify \
  -H "Authorization: Bearer $MT_KEY" \
  -d '{"email":"ada@lovelace.dev"}'
Read the docs →
⚡<800ms p50 response🔒Emails never stored✓SOC 2 · GDPR · CCPA∞99.98% uptime SLA
99.2%
Deliverability accuracy
vs. industry avg 94%
<800ms
Average response time
SMTP handshake + MX
18.4M
Emails verified
This month alone
0
Addresses stored
Verify-and-forget
Marketer
"Our cold outreach bounce rate went from 14% to 1.8%. Our domain reputation recovered in a week."
MR
Maya Reyes
Head of Growth, Nova.io
Developer
"The API is genuinely nice. Three lines to integrate, returns the SMTP response verbatim. I trust it because I can see what it saw."
IS
Ingrid Sato
Staff Engineer, Kernel
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100 free checks / day·No signup needed·We never store your addresses

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