Question 1

What does an email verifier do?

Accepted Answer

An email verifier confirms whether an address can actually receive mail, so you can remove dead and mistyped contacts before a campaign. Enrow's email verifier API returns a deterministic valid or invalid verdict for every address on your list, keeping bounce rates low and your sending domain trusted.

Question 2

Can the email verifier handle a whole list?

Accepted Answer

Yes. Submit up to 5,000 addresses in one call to /email/verify/bulk and the email verifier processes them asynchronously, returning a valid or invalid verdict for each. It is built to clean entire lists before import or a send, not just one address at a time.

Question 3

How does the email verifier protect sender reputation?

Accepted Answer

Every invalid address you remove is a bounce you never generate. Because the email verifier gives a definitive valid or invalid result — catch-all domains included — you send only to addresses that resolve, which keeps bounce rates down and mailbox providers treating your domain as trustworthy.

Question 4

Is the email verifier's result definitive?

Accepted Answer

Yes. Enrow verifies deterministically and returns a clear valid or invalid qualification rather than an 'unknown' or 'risky' status, so you don't need a separate debouncer step before sending.

Question 5

How do I call the email verifier API?

Accepted Answer

Send a POST to /email/verify/single with an email in the body, or /email/verify/bulk to submit up to 5,000 addresses at once. Authenticate with your x-api-key header. The full reference is at docs.enrow.io.

Question 6

Is the email verifier synchronous or async?

Accepted Answer

Async. The POST returns an id immediately, and the verdict arrives by webhook — set settings.webhook in the request — or from the matching GET endpoint. This lets you verify large lists without holding a connection open.

Question 7

How much does the email verifier API cost?

Accepted Answer

0.25 credit per address verified. Credits are shared across all Enrow APIs and plans start at $17, with 50 free credits to begin. You pay only for the addresses you check.

Question 8

Is the email verifier GDPR compliant?

Accepted Answer

Yes. Enrow is GDPR and CCPA compliant, and a DPA is available on request. Authentication is a single x-api-key header, so you can start verifying with your free 50 credits right away.

1	# 1. Launch a search
2
3	curl -X POST https://api.enrow.io/email/verify/single \
4	-H "x-api-key: YOUR_API_KEY" \
5	-H "Content-Type: application/json" \
6	-d '{
7	"email": "john.doe@acme.com",
8	"settings": {
9	"webhook": "https://yourapp.com/webhook"
10	}
11	}'

1	# 2. Webhook fires when ready:
2
3	{
4	"email": "john.doe@acme.com",
5	"qualification": "valid",
6	"credits_used": 0.25
7	}
8
9	# Or poll the result:
10
11	GET https://api.enrow.io/email/verify/single?id={search_id}

1	curl -X POST
2	https://api.enrow.io/email/find/single -H "Content-Type: application/json" -H "x-api-key: YOUR_API_KEY" -d '{
3	"fullname": "John Doe",
4	"company_domain": "example.com"
5	}'

The email verifier API that protects your sender reputation

One API. One endpoint. Single and Bulk.

email verifier

Async-first. Webhook-ready.

Async by default

Metadata passthrough

Webhooks

Deterministic verification

Track everything. Via API or in the dashboard.

Account endpoint

In-app dashboard

SDKs, native integrations, or raw HTTP

SDKs

Native integrations

HTTP from anywhere

Email verifier — what to know before you send

First request in under 10 minutes