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Free email permutator: every email combination from a name

Paste a first name, last name, and company domain. Get all 24 common email formats instantly. Runs entirely in your browser, no signup, no API key, nothing leaves the page.

Try it

forward Enter a name and domain to see all 24 permutations.

What is an email permutator?

An email permutator generates every plausible email format from a person's name and a company domain. The combinations follow patterns most companies use: first.last@domain, first@domain, flast@domain, first.l@domain, and so on. There are roughly 24 standard patterns.

Permutation is the first step in a classic DIY email-finding workflow. The catch: knowing the 24 candidates does not tell you which one actually delivers. That requires a real-time SMTP check.

The problem with permutation alone

cancel

Bounces ruin sender score

Sending to all 24 guesses to find the right one means 23 bounces per contact. Inbox providers throttle senders with bounce rates above 2%.

warning

Spam traps and honeypots

Many wrong guesses land in catch-all inboxes that flag bulk senders. Some addresses are spam traps, so even one hit can put your domain on a blocklist.

schedule

Slow at scale

24 guesses per prospect, across 1,000 prospects, equals 24,000 send-and-wait events. Not viable for any outbound team running real volume.

How Mailsfinder skips the trial and error

Mailsfinder runs the same 24 permutations under the hood, then SMTP-verifies each candidate in parallel and returns only the deliverable address. One API call replaces 24 guesses. Bounce rate stays under 1%.

Step 1

Send Mailsfinder a name and domain.

Step 2

It permutes and SMTP-checks each candidate in parallel.

Step 3

Get the verified address back in under a second. No bounces.

Pricing

Free

100 verified lookups per day, forever. No card.

Monthly

$9.99/mo

300,000 credits per cycle.

Lifetime

$249 once

2,000,000 credits, lifetime pool.

Frequently asked questions

Does this tool send any data to your servers? expand_more

No. The permutation logic runs entirely in your browser. The name and domain you enter never leave the page. You can verify by opening DevTools network tab while using the tool.

Why generate 24 permutations if only one is real? expand_more

You generate them so a verifier can check them in parallel. Mailsfinder's API permutes and SMTP-verifies in a single call, so you skip the manual loop. If you only want the candidates list (for research, training, or building your own pipeline), this tool gives you that.

Can I do this in a spreadsheet? expand_more

Yes, with long CONCAT formulas across 24 cells. The tool here saves you the typing. For bulk lists, the better path is to skip the spreadsheet step and call the Mailsfinder API with a list of names, which returns verified addresses directly.

Does the permutator handle international name formats? expand_more

It supports single first and last names. For hyphenated, double-barreled, and multi-part names (van der Berg, da Silva), enter the parts you expect the email to use, and the tool produces correct combinations.

What's the difference between this and a guess-and-check approach? expand_more

Guess-and-check means sending real test emails to find which bounces. That destroys sender reputation fast. The Mailsfinder approach permutes the same candidates but verifies via SMTP handshake (without actually delivering a message), so you get the answer without burning sender score.

Skip the trial and error

Let Mailsfinder permute and verify in one call. 100 free verified lookups per day. No card required.

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