You only spend credits on definitive answers. When a mailbox genuinely cannot be confirmed, that check costs you nothing, so you are never billed for ambiguity or padded numbers you cannot act on.

See which mail provider sits behind every address, from Microsoft 365 and Google Workspace to Zoho and GoDaddy. When a security gateway like Proofpoint or Mimecast is in front, we reveal the mailbox behind it, so you know how hard that inbox will be to reach.

Format and RFC syntax validation, domain resolution, MX record lookup with an implicit-MX fallback, disposable provider screening, a live SMTP handshake with a RCPT TO probe, a catch-all test against the same domain, plus role-account and business-versus-personal tagging. Any layer can settle a verdict on its own, so we stop the moment the answer is certain.

Every verification node is checked against Spamhaus, Spamcop, Barracuda, CBL and more, every hour. Anything flagged on a serious list is pulled from rotation automatically, so your results never come from a compromised address.

Spin up throwaway inboxes on our domains and read what arrives inside Verifully. Useful for checking how campaigns render on delivery, testing your sending setup, or signups you would rather keep out of your main mailbox.

Ask questions about your list in plain English, such as which domains appear most often or which addresses came back risky. Bring your own API key and it answers against your real verification data.

Some domains accept mail to every address, so a positive response proves nothing. We probe a random address on the same domain to find out, then label it Catch-All rather than quietly counting it as valid.

Verification runs across a rotating pool of independent nodes, picked least recently used so no single address gets overworked. Unhealthy nodes are quarantined automatically and traffic reroutes without you noticing.

Generate the SPF, DKIM, DMARC and CAA records a domain needs to authenticate its mail. Paste them into your DNS and you have covered the setup that decides whether legitimate mail reaches the inbox at all.

Look up any domain's registration date, registrar, nameservers and expiry, with a low, medium or high risk rating. Freshly registered domains are a classic spam signal, and this catches them before they reach your campaign.

Generate a key from your dashboard and verify addresses programmatically at signup, on form submission, or anywhere in your pipeline. Clear status codes, no SDK to install, included on every paid plan.

Your export keeps every original column, whether that is company, revenue or phone, and appends ten verification fields alongside them. The file drops straight back into your CRM with no reformatting.

Paste a list or upload a CSV and the job runs on our servers, not in your browser. Close the tab, shut the laptop, come back to finished results, and stopping early still saves everything verified so far.

Every address passes five independent checks: format and syntax, domain and MX records, disposable screening, a real SMTP mailbox probe, and a catch-all test. You get a clear verdict, a 0 to 100 confidence score, and the exact reason behind it.

We are rebuilding how verification work is paced across the fleet to multiply capacity roughly tenfold. Large lists finish substantially faster, and there are still no daily caps on how much you can verify in one sitting.

Direct connections to Instantly, Smartlead, HubSpot, Mailchimp and Zapier, so lists move both ways without a CSV in the middle. Verify on import, then push clean segments straight back to your sending tool.

Pay as you go packs alongside the monthly plans, with credits that stay in your account until you actually use them. Built for people who clean lists occasionally rather than every month.

If addresses we mark valid bounce above a published threshold, you get your money back. We are measuring across enough real lists to set that threshold honestly before committing to a number.

Find work addresses from a domain plus a first and last name, or uncover the pattern a company uses across its whole team. Every result runs through the full verification engine before it reaches you.

Invite your team, separate client work into distinct workspaces, and control who can view or export which lists. Built for agencies running campaigns for more than one brand at a time.

The same hourly monitoring that protects our own fleet, pointed at your sending domains and IPs instead. Get alerted the moment you appear on a major blocklist, with the delisting steps specific to that list.

Send to a seed set and see where your mail actually lands across the major providers, whether that is the inbox, promotions or spam. Verification confirms an address is reachable, and this tells you whether you are being read.

Get a callback the moment a job finishes instead of polling for it, and set any list to re-verify automatically on a schedule. Lists decay continuously, and this keeps yours clean without you having to remember.

Flag likely spamtrap addresses before they damage your reputation, and catch obvious typos such as gmial.com or hotmial.com with suggested corrections. Two of the cheapest ways to protect a sending domain.

Run disposable inboxes on domains you own rather than ours, with your own naming conventions. Better for client-facing testing and for teams that need everything under their own brand.