The email list checker you can actually talk to.
Type an address and watch it verify live. Then just ask our AI why it's risky and what to do next — real-time SMTP, catch-all and disposable detection, in plain English. Not a green light. An answer.
Not a green light. An answer.
Every other verifier hands you a wall of statuses to decode. Ours explains them in plain English — and tells you exactly what to do next. Upload a list and just ask.
- Talk to your list.“Is this safe to send?” “Show me the catch-alls.” Filtered answers instantly.
- Plain-English verdicts. What a catch-all really means for your send — never just a cryptic label.
- It does the work. Verify, clean, segment and export — confirm-first, so it never spends a credit without you.
| ✅ Valid | 23,636 · 77.5% |
| ❌ Invalid | 2,444 · 8.0% |
| ⚠ Catch-all | 192 · 0.6% |
| ❓ Unknown | 4,230 · 13.9% |
Verify at signup, before the bounce.
Drop a single request into your signup flow or batch a million in the background. Sub-second responses, SDKs and webhooks — and we only charge for answers we're sure of.
- 20+ live checks — syntax, MX, SMTP, catch-all, disposable, role and spam-trap.
- Pay for answers.Genuinely undeterminable result? You don't pay for it.
- 99.9% uptime SLA and a GDPR DPA in writing.
$ elc verify --email [email protected] → resolving MX… stripe.com ✓ → SMTP handshake… 250 OK → catch-all probe… not accept-all → disposable / role… clean VALID confidence 0.98 mailbox confirmed $ elc verify --email [email protected] CATCH-ALL confidence 0.55 accept-all domain $ elc verify --email [email protected] INVALID confidence 0.04 domain typo → gmail.com?
curl -X POST https://platform.emaillistchecker.io/api/v1/verify \
-H "Authorization: Bearer $ELC_API_KEY" \
-d '{ "email": "[email protected]" }'
// 200 OK · 0.3s median
{
"result": "valid", // valid | risky | invalid | unknown
"score": 0.98, // 0–1 confidence
"reason": "mailbox confirmed",
"checks": { "syntax": true, "mx": true, "smtp": true,
"catch_all": false, "disposable": false },
"charged": true // unknown results are free
}A complete deliverability toolkit.
One instrument for the whole job — grade a list, clean it, verify at signup, and push the survivors back to your CRM.
Deliverability grade
An A–F health score for every list, with the exact risk segments dragging it down.
Bulk verification
Upload a CSV or Excel file and clean tens of thousands of addresses per job, with live progress.
Real-time API
Verify at the point of signup or in batches. Sub-second responses, SDKs and webhooks.
Spam-trap & disposable detection
Catch spam traps, disposable inboxes, role accounts and catch-all domains before they cost you.
Email finder
Find a person's address from name + company, or every role mailbox at a domain — then verify it.
Watch the bounces vanish.
Every row is verdict-stamped with a confidence score you can actually trust — no fake green lights. Export only the deliverable addresses, or push them straight back to your CRM.
- Reduce bounces 95% — or your money back, in writing.
- Export or write-back to Mailchimp, HubSpot, Klaviyo and SendGrid.
- Unknowns are free.If we can't be sure, you don't pay for the row.
| Verdict | Confidence | |
|---|---|---|
| [email protected] | Valid | 0.98 |
| [email protected] | Valid | 0.97 |
| [email protected] | Catch-all | 0.55 |
| [email protected] | Typo | 0.04 |
| [email protected] | Disposable | 0.02 |
| [email protected] | Valid | 0.96 |
20+ verification checks. Every address.
Syntax to SMTP, catch-all to spam-trap — the full pipeline runs on every email, so nothing risky reaches your campaign.
Syntax validation
RFC-compliant format and typo checks.
Domain verification
Confirms the domain exists and resolves.
MX record check
Validates the domain can receive mail.
SMTP verification
Live mailbox handshake at the mail server.
Mailbox existence
Confirms the specific inbox is real.
Catch-all detection
Flags accept-all domains that hide bounces.
Role-account detection
Spots info@, support@, sales@ and similar.
Disposable email detection
Blocks temporary and throwaway inboxes.
Free-provider detection
Identifies Gmail, Yahoo, Outlook and more.
Spam-trap detection
Removes traps that wreck sender reputation.
Duplicate removal
De-dupes your list before you pay to verify.
Greylisting handling
Retries deferrals for a confident verdict.
Results guaranteed, or your money back.
Enterprise-grade protection with startup-friendly pricing — and a refund promise in writing.
Reduce bounces 95% — or your money back
Clean your list and watch hard bounces collapse. If it doesn't, we refund you. In writing.
Set up in 60 seconds
Create a free account and verify your first emails immediately. No engineer required.
98.9% accuracy — or we credit you
Industry-leading accuracy on every job. Miss it and the credits go back on your account.
Your data stays yours
Encrypted in transit and at rest, deleted on request, and never sold or shared with anyone.
Verification that lives inside your tools.
Connect in two clicks and verify on import — Mailchimp, HubSpot, Klaviyo, SendGrid, Zapier and a REST API. No engineers required.
A clean list is step one. Landing is the rest.
The Deliverability Suite checks everything that decides inbox vs spam — placement, SPF/DKIM/DMARC, sender reputation, blacklists, BIMI and spam scoring — and hands you the exact fix for each.
Inbox placement testing
Seed-test across Gmail, Outlook, Yahoo and Apple Mail to see Inbox, Promotions or Spam per provider — measured, never modeled.
SPF · DKIM · DMARC audit
Every authentication record checked for syntax, alignment and reverse-DNS — graded pass / warn / fail with the exact record to paste.
Sender reputation
Authentication, complaint and bounce signals folded into one honest sender-health score, with the single lever to pull first.
Blacklist & RBL checks
Continuously screen your sending domains and IPs against the major real-time blocklists — Spamhaus, Barracuda, SORBS and more.
Put verification inside your agents.
The same tool layer that powers our in-app assistant is exposed over Model Context Protocol. Point Claude Desktop or any MCP client at one URL and your agent inherits 40 scoped tools — metered by credits, capped per agent, confirm-first on anything billable.
- One config block — no SDK, no glue code, no per-tool wiring.
- Per-agent wallets— set a hard credit ceiling each agent can't exceed.
- Same guardrails — it asks before it spends, even autonomously.
// Claude Desktop · mcp.json
{
"mcpServers": {
"emaillistchecker": {
"url": "https://platform.emaillistchecker.io/mcp",
"headers": { "Authorization": "Bearer elc_live_•••••" }
}
}
}Honest by default.
Everyone in this category claims “99% accurate.” We’d rather show our work — and price it fairly.
Real accuracy, shown
We tell you our true syntax, MX and SMTP confidence per result — and never hide unknowns behind a fake green light.
Credits never expire
Buy once, use whenever. No 12-month clock quietly deleting what you paid for. In writing.
Pay for answers
If we genuinely can't determine a result, you shouldn't pay for it. Simple as that.
Lists cleaned. Bounces gone.
80,000+ businesses send with confidence on EmailListChecker.
We cut our bounce rate from 11.4% to 0.5% in a week. The AI explaining why each address was risky is the part our team actually loves.
The API drops straight into our signup flow. Fake and disposable emails never make it into the database anymore.
Half the price of the tool we left, and the inbox-placement testing paid for itself on the first campaign.
Not just another verifier.
The same 20+ checks everyone runs — plus the things only we do.
Pay for answers, not a calendar.
Credits never expire. Start free with 100 verifications — no card required.
No card · 100 free · PAYG ×1 · Monthly −10% · Annual −25%
Good to know.
Verify your first 100 emails free.
No credit card. See your list graded — and talk to the AI that cleans it — in under a minute.