You upload 10,000 emails.
Filtrat
Other tools
Other tools would charge you for all 2,000 of those.
Resolve catch-alls when ready.
3 credits each →
Your best leads, marked unknown
We check what other tools call unknown.
snowplow.io accepts any address — real or invented.
Standard tools call everything unknown and charge you anyway.
3 credits per confirmed result. Free if we cannot determine it.
Three unknowns. Three answers.
From catch-all to confirmed.
Pattern detection and AI normalization turn unknowns into answers.
Pattern lookup is per domain, not per email.
Everything included.
Catch-all mailbox verification
Some domains accept any address you send. We check whether the actual mailbox exists.
Typo detection
A one-letter mistake in your uploaded list. Spotted automatically, correction suggested. Free.
Email format lookup
The naming convention a company uses, with usage percentages. The smartest way to resolve catch-all addresses.
Domain health check
Who hosts it, catch-all status, authentication records. Always free.
180-day result cache
Already checked this address? Free for 180 days.
REST API
Every feature, same pricing, from your stack.
Pricing
One credit balance. Everything included.
Top up when you need more. Plan credits drain first.
One credit pool. Plan credits drain first, then top-ups. Credits reset monthly — top-ups never expire.
Top-up packs
No subscription. Credits never expire.
200 free credits to start. No card required.
FAQ