Predict work emails on LinkedIn from public company patterns, save templates, and send them from your own Gmail β no backend.
Users
5
+1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#247K
#206K among extensions
Version
3.3.0
updated 13 Jul 2026
Users
monthly, 4 months
Latest, 19 Oct 2026:5 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 19 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About TrailMail
Stop burning a lookup credit on every single email.
TrailMail spends just ONE Hunter.io credit per company. It reads that company's verified email pattern once, then generates a predicted work email for everyone on the LinkedIn page - up to 15 per scan - for free. Your free Hunter.io tier (50 lookups/month) becomes hundreds of emails.
Then send a personalized template to the people you pick, straight from your own Gmail. All in one tab.
Why TrailMail
π³ 1 credit β up to 15 emails β one company lookup covers the whole team
β‘ Verified-pattern predictions β anchored to the company's real email pattern, cross-checked against multiple records
π― Confidence on every result β HIGH / MEDIUM / LOW, so you know what to trust
βοΈ Templates with merge tags β {First}, {Company}, {Role}; write once, personalize each send
π¨ Sends from your Gmail β one email per person, from your account, in your Sent folder
π Export anytime β copy to clipboard or download CSV in one click
Privacy first: Runs entirely in your browser. No server, no data collection, no third-party storage. Gmail access is send-only and cannot read or touch your mailbox.
What you need
β’ A free Hunter.io API key β and each credit covers a whole company, not one email
β’ Gmail sign-in for sending
Heads up
Predicted emails are not verified and some may bounce. You are responsible for compliant, respectful outreach under GDPR, CAN-SPAM, and any applicable regulations.
Independent tool. Not affiliated with LinkedIn or Hunter.io.