Mailthentic
Email Finder

Find anyone's business email — verified

Give us a name and a company domain. We try the most common email patterns and verify each one live against the mailbox — so what you get is a real, deliverable address, not a guess.

5,000 free credits · No credit card required · Cancel anytime

How it works

From name to verified email in seconds

No spammy guesswork. Every candidate is probed against the live mail server before we hand it back.

1

Enter the inputs

First name, last name, company domain. That's it. Bulk uploads via CSV/XLSX are also supported.

2

Catch-all check

We first probe a random local part. If the domain accepts everything, we bail (and refund) rather than feed you false positives.

3

Pattern probing

We try the 9 most common business patterns in frequency order — firstname.lastname, flastname, etc. — via live SMTP.

4

Confirmed result

Stop on the first confirmed deliverable mailbox. See every pattern that was tried, with status and confidence.

Built for accuracy

Why Mailthentic's finder is different

Other tools guess and serve you a "most likely" address. We verify the exact mailbox before we hand it over.

Live SMTP confirmation

Every candidate is probed against the real mail server. Confirmed means the mailbox actually exists — not just that the pattern is statistically likely.

Catch-all aware

Domains that accept any address can't be searched reliably. We detect them upfront and refund your credits rather than guessing.

Custom probe patterns

Most companies use one of nine standard formats. For the rest, add your own templates using {first}, {last}, {f}, {l} placeholders. No extra cost.

Bulk uploads

Upload a CSV or XLSX with up to 5,000 rows. Header columns auto-detected — works with "First Name", "fname", "Given Name", "Company", "Website", and more.

Stop on first hit

Most finder runs terminate after 1–3 probes — the first match wins. No need to wait through every pattern just to learn one was the answer.

Refunds on dead ends

Invalid domain, catch-all, or infrastructure failure — we refund automatically. You only pay for searches that produced useful work.

Who uses it

Built for outbound, recruiting, and sales

Cold email outreach

Build a clean prospect list with verified addresses. Reduces bounce rates and protects sender reputation.

Recruiting & sourcing

Found a great candidate on LinkedIn? Get a confirmed business email instead of a generic InMail.

B2B sales prospecting

Reach decision-makers with verified emails — not "info@" or "contact@" generic addresses that route to nobody.

FAQ

Common questions

How does the email finder work?

Given a person's first name, last name, and the company's domain, we generate the nine most common business email patterns and probe each one via live SMTP. We stop on the first confirmed deliverable address.

Why only business domains?

Consumer providers like Gmail and Yahoo don't enforce a naming convention — usernames are arbitrary. Pattern guessing only works when employees follow a company-wide format, which is the norm at almost every business.

What if the domain is catch-all?

We probe with a random local part first. If the server accepts it, the domain accepts everything — we refuse to guess (any answer would be unreliable) and refund your credits automatically.

Can I add my own probe patterns?

Yes. Use {first}, {last}, {f}, {l} in templates like {first}.{last}.dev. Custom patterns don't cost extra.

How accurate is the result?

For confirmed hits, near 99 % — we verified the exact mailbox via SMTP. For Google Workspace and Microsoft 365 domains (which never confirm individual mailboxes by design), we return a best-guess with a 70-75 % confidence score.

How much does it cost?

Five credits per finder query — flat rate regardless of how many patterns we try. Refunded automatically for catch-all, invalid domain, and infrastructure failures. Sign up free with 5,000 credits.

Is bulk supported?

Yes — upload a CSV or XLSX with up to 5,000 rows. Each row is processed in parallel and you can download results as CSV. Header columns are auto-detected.

Start finding emails today

5,000 free credits on signup. No credit card. No subscription. Run your first finder query in under a minute.