Question 1

What is an email checker?

Accepted Answer

An email checker verifies whether an email address is real and deliverable before you send to it. Enrow's email checker API returns a deterministic valid or invalid verdict for any address — including catch-all domains — so you can clean your lists and protect your sender reputation.

Question 2

How accurate is the email checker?

Accepted Answer

Enrow runs deterministic verification and returns a clear valid or invalid qualification — no ambiguous 'risky', 'unknown' or 'accept-all' status. Because the result is definitive, you don't need to pass it through a separate debouncer before sending.

Question 3

Does the email checker work on catch-all domains?

Accepted Answer

Yes. Where most tools flag catch-all domains as 'risky' and give up, Enrow's email checker verifies them deterministically and still returns a definitive valid or invalid result.

Question 4

Can I check emails in bulk?

Accepted Answer

Yes. POST a batch to the bulk endpoint, Enrow processes it asynchronously, and you retrieve the results via webhook or the matching GET endpoint — no blocking, no polling loops required.

Question 5

How do I call the email checker API?

Accepted Answer

POST an email address to /email/verify/single, or /email/verify/bulk for a batch. Authenticate with your x-api-key header. Get the qualification back and, for bulk, receive it via webhook when the batch is done. Full reference at docs.enrow.io.

Question 6

How much does the email checker API cost?

Accepted Answer

0.25 credit per email checked. Credits are shared across all Enrow APIs and start at $17. You only pay for the checks you run.

Question 7

Is the email checker GDPR and CCPA compliant?

Accepted Answer

Yes. Enrow processes professional contact data in accordance with GDPR and CCPA. Prospects can request removal at any time, and a DPA is available on request.

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 checker API built for deliverability

One API. One endpoint. Single and Bulk.

email checker

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 checker — everything you need to know

First request in under 10 minutes