Find a company's email format
Enter a company's domain. We read addresses at that company that have passed a mailbox check and show the format they follow. We never guess a person's address.
How the format is worked out
1ReadWe find people at the company and look up each one's work address, checked against the mail server.2CompareEach address that passed is matched against the common formats: first.last, flast, first and the rest.3ReportYou see the most common format and how many addresses use it. The addresses stay hidden.The same lookup, one tool call away
This page runs find_leads, the same tool your AI agent gets with a Layrcake key. From Claude, ChatGPT, Cursor or your own code it costs from 3 credits a lookup. It returns the people too, and enrich adds each one's checked email for 5 credits. Nothing is charged when nobody is found.
❯ What email format does example.com use? Only count verified addresses.claude mcp add --transport http --scope user layrcake https://mcp.layrcake.dev/mcp
curl https://api.layrcake.dev/v1/find_leads \
-H "Authorization: Bearer $LAYRCAKE_API_KEY" \
-d '{"audience":"people at example.com","company_domains":["example.com"],"limit":5}'Email format finder: common questions
Why not just guess first.last@company.com?
Guessed addresses bounce, and bounces hurt the inbox you send from. The format here comes only from addresses that passed a mailbox check.
Will this show me someone's email address?
No. This page shows the format and how many verified addresses follow it. To get a specific person's checked email, use your agent or the API with a free account.
How many lookups are free?
3 a day on this page. A free account comes with 300 credits for your agent or the API.