Email Verify API docs
Batch up to 50 addresses per call with the same statuses this page shows.
Open pathDeliverability tool
Every bounce costs sender reputation, and reputation is what decides whether the next campaign lands in an inbox or a spam folder. Crawlora's free bulk email verifier checks addresses you already hold: paste a list and each one comes back verified (the mailbox accepts mail), risky (a catch-all, role, or disposable address), invalid (bad syntax or no MX records), or unverified (it could not be determined). The check is syntax, then MX records, then an SMTP probe that stops at RCPT — no mail is ever sent to the addresses you paste. The free tool checks a short list per run; the API takes 50 per call.
Quick answer
Crawlora's free bulk email verifier checks a pasted list of addresses and returns each one's deliverability status: verified when the mailbox accepts mail, risky for catch-all, role, or disposable addresses, invalid for bad syntax or a domain with no MX records, and unverified when it could not be determined. It runs syntax, MX, and an SMTP probe that stops at RCPT, so no mail is sent.
Use this before a send: check whether the addresses on a list actually accept mail, so bounces don't cost you sender reputation.
Verify you're human before running
Example output before you run the tool
| Status | Type | |
|---|---|---|
| jane.doe@example.com | verified | personal |
| info@example.com | risky | generic |
One per line, or comma-separated. Duplicates and blanks are dropped before anything is checked.
Malformed addresses and domains with no mail server are settled immediately as invalid, without touching the network further.
For the rest, the check asks the receiving mail server whether the mailbox exists and stops at RCPT. No message is ever sent to the address.
Each address comes back verified, risky, invalid, or unverified. Call the API to check 50 per request from your own stack.
Re-check an older list before you reactivate it, so a single send doesn't spike your bounce rate.
Catch invalid and disposable addresses before a campaign, where bounces cost deliverability for every later send.
Validate addresses as they arrive from forms and imports, instead of discovering the bad ones at send time.
Confirm that a scraped or purchased contact is reachable before anyone spends time on it.
The free tool checks a short list per run. Use the API to verify 50 addresses per call, on a schedule or straight from your CRM, with the same statuses.
Batch up to 50 addresses per call with the same statuses this page shows.
Open pathDon't have the addresses yet? Pull a company's public emails from its website.
Open pathFind and verify in one call when you are starting from a website rather than a list.
Open pathWhere verification fits in a discovery-to-outreach workflow.
Open pathFree email finder by domain — paste a website and get its public business emails (generic vs personal), plus phone numbers and social profiles, for lead generation.
Free Google Maps email extractor and lead finder — search Crawlora's Google Maps business dataset by category and city, then enrich the returned websites with the public business emails, phones, and socials they publish.
The exact authenticated request this tool makes — copy it, add your key, and you're live.
Create a free key, drop it in the header, and paste this into your terminal. 2,000 credits a month, no card.
curl -X POST "https://api.crawlora.net/api/v1/email/verify" \
-H "x-api-key: $CRAWLORA_API_KEY" \
-H "content-type: application/json" \
-d '{"emails":["jane.doe@example.com","info@example.com"]}'Production path
The free tool checks a short list per run. Use the API to verify 50 addresses per call, on a schedule or straight from your CRM, with the same statuses.
List hygiene before a send, and verifying addresses as they enter a CRM.