Catch-all doesn't mean unverifiable.

Some domains accept any address you send — real or invented. Standard tools see this and mark everything unknown. We check whether the actual mailbox exists and return a confirmed result.

Detected— free

Confirmed result— 3 cr

Unresolvable— free

3 credits per confirmed result · Unresolvable addresses cost nothing

200 credits · No card required

The problem

Why standard tools cannot go further.

When a mail server accepts every address you send — including completely invented ones — there is no way to determine from the server response alone whether a specific mailbox exists. Standard verification reads that response and stops. Every address on that domain gets labelled unknown, including real ones belonging to real people you want to reach.

Thirty to forty percent of B2B domains behave this way. Writing off catch-all results means writing off a significant portion of every B2B list you will ever work with.

Catch-all resolution

A confirmed result instead of an unknown.

EmailOther ToolsFiltrat

[email protected]Catch-all (charged)

Deliverable· 3 cr

[email protected]Catch-all (charged)

Deliverable· 3 cr

[email protected]Catch-all (charged)

Will bounce· 3 cr

3 credits per confirmed result. If we cannot determine the result, you pay nothing. The address stays flagged as catch-all and no resolution credit is charged.

How it works

Run immediately or after a verification job.

Two ways to use catch-all resolution.

After bulk verification

Catch-all addresses come back flagged at no cost. From your results you select which ones to resolve — all of them, a specific domain, or a manual selection.

Immediate resolution

Run resolution immediately on any individual address without a prior verification step. Paste an address, trigger resolution, get a confirmed result.

Unresolvable addresses remain flagged and are never charged.

Credit strategy

Pattern lookup before resolution.

Know which addresses are worth resolving before spending 3 credits each. One domain lookup — 7 credits — tells you everything.

snowplow.io7 credits

first.last@72%

firstname@18%

firstinitial.last@10%

Addresses matching first.last@ are high priority. Non-matching patterns are lower probability — resolve selectively.

7 cr

One domain lookup. Charged once, regardless of how many addresses from that domain you then resolve.

3 cr

Per resolved address. Prioritise pattern-matching addresses first — fewer credits spent, higher proportion of confirmed deliverables back.

Pattern lookup + catch-all resolution

The combination that recovers usable contacts from domains other tools write off entirely.

See how email format lookup works

200 free credits. No card.

Enough to run a verification job, see which addresses land as catch-all, and resolve a selection to confirmed results.