How to Find Someone's Email Address

Finding a professional email address involves using public signals — company domains, name patterns, and email finders — combined with verification to confirm the address before reaching out.

How to Find a Professional Email Address

1. Find the company domain

Start with the company website. The domain used for the website (e.g., company.com) is almost always the email domain too.

2. Guess the email pattern

Most companies use one pattern: firstname@domain.com, first.last@domain.com, or firstlast@domain.com. Look at public LinkedIn profiles or press releases for clues. If you find one address, you know the pattern.

3. Use an email finder tool

Tools like Hunter.io and Snov.io scrape publicly available data to surface email addresses associated with a domain. Enter the person's name and company to get a match.

4. Verify before you send

Email finders have false positives. Always verify the address with BillionVerify before including it in a cold outreach campaign. Sending to invalid addresses damages your sender score.

5. Check LinkedIn for direct contact

Some LinkedIn users include their email in their profile or message preferences. InMail is also an option if you cannot find the address.

Tips

Verify every found address — email finders are not 100% accurate.
Respect privacy and CAN-SPAM/GDPR when contacting people cold.
Personalize your outreach — cold email with no context gets ignored.

Domande frequenti

Is it legal to find and use someone's work email?

Work email addresses are generally considered professional contact information. In the US, cold B2B email is legal under CAN-SPAM. In the EU, GDPR requires a legitimate interest basis. Always include an unsubscribe option.

What is the most reliable way to find a professional email?

Combine a pattern-based guess (based on other addresses at the domain) with SMTP verification. This is more accurate than email finders alone because it confirms the specific mailbox exists.

How do I verify an email address I found?

Paste it into BillionVerify's free email checker at /email-checker. It runs a full syntax, domain, and SMTP check and tells you whether the address is deliverable.