Submit an extension

↑↓ move · ↵ open · Tab filter · Esc close

How-to guide

How to Find Someone's Email Address (Without Guessing Blind)

How-to

How to Find Someone's Email Address (Without Guessing Blind)

Illustration: A magnifying glass hovering over a scattered stack of business cards and an org chart, searching for one highlighted name.
On this page
  1. The short answer
  2. How do you find someone's email address?
  3. How do you guess an email address from someone's name and company?
  4. How do you verify a guessed email address before sending anything?
  5. How do you find someone's email through LinkedIn or a company website?
  6. Do email finder extensions like Apollo actually work?
  7. How do you find someone's email address in Gmail?
  8. Is there a free way to find someone's email address?
  9. What should you do once you have the email address?
  10. Is it legal or ethical to look up someone's email address without asking first?
  11. Frequently asked

The short answer

Check the company's team or contact page first, then LinkedIn, then try the standard first.last@domain pattern most companies use. Verify any guess against a public source, like a press mention or directory listing, before relying on it, or use a LinkedIn-based finder like Apollo.io to test likely combinations for you.

How do you find someone's email address?

Start with the company's own website, then LinkedIn, then a common pattern based on their name and domain. If none of that confirms an address, a finder tool like Apollo.io can check likely combinations against the company's actual format.

  1. Check the company's 'Contact,' 'Team,' or 'Press' page for a listed email or a format example.
  2. Search their name plus the company name on LinkedIn for a bio, post, or Contact info section.
  3. Try the most common name-based pattern for that domain (see the table below).
  4. Use an email finder extension to test likely patterns against the domain if you can't confirm one manually.

How do you guess an email address from someone's name and company?

Most companies use one consistent pattern for every employee, so once you know it for one person at that domain, it usually works for everyone else there too.

Common corporate email patterns
PatternExample for Jane Smith at acme.com
first.last@domainjane.smith@acme.com
firstinitiallast@domainjsmith@acme.com
first@domainjane@acme.com
firstlast@domainjanesmith@acme.com
first_last@domainjane_smith@acme.com

Find the pattern from one known example

Check a press release or news article that quotes a different employee at the same company alongside their email address. That one confirmed example reveals the pattern for the whole domain.

How do you verify a guessed email address before sending anything?

The safest check is finding the same address confirmed somewhere public, like a staff directory, a GitHub commit, or a conference speaker page, rather than guessing and hoping it lands.

  • Search the exact guessed address, surrounded by quotation marks, to see if it appears anywhere publicly.
  • Check whether the person's LinkedIn Contact info section lists an email directly, since some profiles show it if privacy settings allow.
  • Look at the company's careers page or press kit, which sometimes lists a media or general contact address you can compare formats against.

Don't machine-gun multiple guesses at once

Sending several guessed addresses to the same domain in a short window can bounce back and, on some mail systems, get your own address flagged for sending to unknown recipients repeatedly. Verify first, then send once.

How do you find someone's email through LinkedIn or a company website?

LinkedIn's Contact info panel on a profile sometimes lists an email if the person added one and their privacy settings allow it. Company websites often help too, especially About, Team, staff directory, or press pages.

An extension that checks LinkedIn profiles for a likely email

  • Apollo.ioFreemium

    Sales & Lead Gen

    Works from a LinkedIn profile or company domain to surface a likely email and, sometimes, a phone number. Main catch: it's Freemium with limited free searches, and results are still a best guess you should verify.

University and government sites are the most reliable of the bunch, since many publish full staff directories with real, working addresses rather than a generic contact form.

Do email finder extensions like Apollo actually work?

They're pattern-and-database tools, not magic. They combine the same guessing patterns described above with data they've already collected, so they work best for people at companies with a public LinkedIn presence.

They struggle for personal addresses and very small businesses with no consistent domain pattern. Freemium tiers also cap how many free searches you get, and results are typically labeled as a likely match rather than a confirmed one — always cross-check before you rely on it.

How do you find someone's email address in Gmail?

Type their name into Gmail's To field while composing. Gmail autosuggests based on your existing contacts and past correspondence, so it only surfaces people you've already interacted with, not brand-new external addresses.

  1. Click Compose in Gmail.
  2. Type the person's name in the To field.
  3. Watch the autocomplete list — Gmail shows anyone in your contacts or past email threads matching that name.
  4. If nothing appears, they're not in your contacts or mail history, and Gmail alone won't find a new external address for you.

Check Google Contacts too

If a name partially matches but doesn't show the full address, look them up directly at contacts.google.com, which sometimes stores older or merged entries that don't always surface in Compose.

Is there a free way to find someone's email address?

Yes, for the manual methods above — company pages, LinkedIn, and pattern guessing cost nothing. Most dedicated finder tools cap free searches and charge for volume, so 'free email address list' searches mostly lead to paid tools with a limited free tier.

Be wary of bulk 'free email list' sites

Sites offering large free lists are usually outdated, scraped, or sold without the owner's consent. Using them for outreach risks spam complaints against your own account, on top of contacting addresses that no longer work.

What should you do once you have the email address?

Identify yourself and your reason for writing in the first sentence. A cold email to a guessed address is more likely to get marked as spam than one sent to a confirmed contact who recognizes the context.

Write and track outreach once you've found the address

Is it legal or ethical to look up someone's email address without asking first?

Looking up a publicly listed or work-context email is generally fine for legitimate outreach, but rules like GDPR in the EU/UK restrict how you can store and reuse someone's personal data once you have it, and cold outreach at scale can trigger spam regulations regardless of location.

In the US, the FTC's CAN-SPAM guidance requires commercial email to include a way to opt out, and honoring 'do not contact' requests promptly matters no matter which country you're emailing from.

Keep it to professional contexts

For a personal, non-business email address, unsolicited outreach is much easier for the recipient to view as intrusive. Save pattern guessing and finder tools for work and professional contacts.

Extensions mentioned in this guide

Frequently asked

Is there any free email lookup?

Yes, manual methods are free — checking a company's team page, LinkedIn profile, or guessing the common name-based pattern for their domain. Dedicated finder tools usually cap free searches and charge for more.

How can I find an email account by name?

Search the name alongside the company or organization on LinkedIn and the company website first. If that fails, try the standard first.last@domain pattern used by most workplaces.

What is the best way to find email addresses?

Combine a confirmed pattern, from a press release, GitHub commit, or public directory, with a LinkedIn-based finder tool to check it, then verify before you rely on it for anything important.

Where can I find a free email address list?

Be cautious of sites offering bulk free lists — they're usually outdated, scraped, or sold without consent, and using them for outreach risks spam complaints against your own account.

How do you find someone's email address in Gmail?

Type their name into the To field while composing. Gmail only autosuggests people already in your contacts or past conversations, not new external addresses.

How do you do a reverse email lookup?

There's no single reliable free reverse-lookup tool for personal use. Try searching the exact address in quotation marks on a search engine to see where it's publicly listed.

How do you find a company's general email address for free?

Check the company's 'Contact us,' 'Press,' or 'Careers' page, which often lists a general inbox or names a real employee's format you can adapt.

Does Apollo.io find personal, non-work email addresses?

It's built around LinkedIn profiles and company domains, so it works best for professional contacts and generally doesn't surface personal, non-work addresses.

How do you know if a guessed email address is correct before sending?

Look for the same address confirmed elsewhere publicly, such as a directory, commit history, or press mention, rather than relying on the guessed pattern alone.

Is it legal to email someone whose address you found through a pattern?

Generally yes for one-off professional outreach, but rules like CAN-SPAM or GDPR affect how you can reuse or store the address afterward, especially at scale.

Can you track whether someone opened the email once you find their address?

Yes, with an email tracking extension like Streak or cloudHQ Email Tracker, though tracking pixels can be blocked by the recipient's mail client, so treat results as directional.

What's the most common email pattern companies use?

first.last@domain is the most widespread pattern, followed by firstinitiallast@domain, but always confirm with one known example from that specific company before assuming.

Sources

  1. Apollo.io: official site
  2. Google: Gmail Help Center
  3. FTC: CAN-SPAM Act compliance guide for business