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⚡ Chrome extension · Free to install

Turn LinkedIn into your inbox.

TrailMail predicts the work email of everyone on a LinkedIn company page, lets you send from your own Gmail, and tracks every open, all in one tab.

1 Hunter.io credit = up to 15 work emails
The problem

You found the perfect person. Now what?

You are staring at the ideal lead on LinkedIn. The one detail you actually need, their email, is the one thing the page will not give you.

01

Credits vanish one email at a time

Most finders charge a lookup for every single person. A free tier dries up before you have contacted a single team.

02

You bounce between five tabs

LinkedIn, then a finder, then a spreadsheet, then your mail client, then a tracker. Copy, paste, lose your place, repeat.

03

You hit send into the void

No idea if it landed, got opened, or bounced. Outreach without signal is just loud guessing.

The turn

What if one lookup covered the whole team?

0
Hunter.io credit
=
up to 0
work emails generated

TrailMail reads a company's verified email pattern once, then generates a predicted address for everyone on the page, all for free. Your free Hunter tier of 25 lookups a month becomes hundreds of emails.

How it works

Three steps. One tab. Zero copying and pasting.

01 · Predict

Scan a page, get the whole team's emails

Open any LinkedIn company People page. TrailMail reads the names, roles, and company, looks up the verified email pattern with one Hunter.io credit, and predicts an address for up to 15 people at once. Every result is tagged HIGH, MEDIUM, or LOW confidence.

  • Anchored to the company's real pattern and verified against multiple records
  • Confidence on every single result, so you know what to trust
TrailMail predicting emails on a LinkedIn company page
02 · Send

Email from your own Gmail, fully personalized

Pick who to reach, write a template once with merge tags like {First}, {Company}, {Role}, and send. Every message goes out one per person from your real account, landing in your own Sent folder.

  • Gmail access is send only, so TrailMail can never read your mailbox
  • No backend, no shared server, no credentials stored anywhere but your browser
Composing a templated email inside TrailMail
03 · Track

See every open and click, right in Gmail

TrailMail badges your Gmail Sent list with ✓ Opened and ↗ Clicked as people engage. Finally, outreach with a feedback loop. You see what is landing without ever leaving your inbox.

  • Tracking works out of the box, with zero setup
  • Respects privacy, and you can self host it for full control
Open and click tracking badges in the Gmail Sent list
Everything inside

A full outreach stack in one extension

💳

1 credit → up to 15 emails

One company lookup covers the whole page. Stretch a free Hunter tier into hundreds of predicted addresses a month.

🎯

Confidence scoring

Every prediction is graded HIGH / MEDIUM / LOW so you know exactly what to trust.

Verified patterns

Anchored to the company's real email format and verified against multiple records.

✍️

Templates & merge tags

Write once with {First}, {Company}, {Role}. Personalize every send automatically.

📨

Send from your Gmail

One message per person, from your account, in your Sent folder. No spoofing, no relay.

📈

Open & click tracking

Live ✓ Opened / ↗ Clicked badges right inside your Gmail Sent list.

📋

Export anytime

Copy to clipboard or download a CSV of every predicted address in one click.

🔒

Privacy first by design

Runs entirely in your browser. No server of its own, no data collection, no third party storage. Your key and templates never leave your machine.

Why TrailMail

The old way vs. the trail

The old way
  • A credit burned on every single email
  • Five tabs and a spreadsheet
  • Send and pray, with no feedback
  • Your leads sitting on someone else's server
  • Monthly seat fees before you send a word
vs
TrailMail
  • One credit covers a whole company
  • Predict, send & track in one LinkedIn tab
  • Live open & click signal in your inbox
  • 100% in your browser, nothing collected
  • Free to install, send from your own Gmail
TrailMail glass sidebar on LinkedIn

An Apple glass sidebar that lives quietly on LinkedIn and never leaks a pixel.

Start your first trail today.

Install TrailMail, paste a free Hunter.io key, connect your Gmail, and turn the next company page you open into a sent campaign.

Add TrailMail to Chrome

Free · Predictions only, not verified · You own compliant, authorized outreach (GDPR / CAN-SPAM).