Read receipts for Outlook & Gmail

Know the moment
your email is read.

Double green checkmarks appear the instant your message is opened — the read-receipt experience Outlook and Gmail should have shipped with.

7-day Pro trial · No credit card · Microsoft or Google sign-in

2 clients
Outlook & Gmail, one account
< 5 sec
Open-to-alert latency
$0
To start — no card
sent · outlook + gmail
AC
Alex Chen
Proposal follow-up — opened just now
✓✓
JL
Jordan Lee
Quick intro
✓✓
MR
Maya Ruiz
Contract for review
Opened 3 times

Last opened today at 2:18 PM · Desktop · San Francisco

Full tracking history →

/ how it works

Three steps, no new mail client

1

Sign in with Microsoft or Google

No password to create. OAuth connects the add-in or extension to the mailbox you already use.

2

Flip Track on and send

One toggle in Outlook's ribbon or Gmail's compose bar. Everything else about your send stays identical.

3

Watch the checks turn green

Opens, clicks, devices and timing land in your sent view — plus an alert within seconds of the open.

/ in the inbox you already use

Track from Outlook's ribbon or Gmail's compose bar

Send exactly as you always have. TrackMail records opens and link clicks in the background and reports back where you already work.

  • Outlook add-in for Microsoft 365
  • Gmail Chrome extension on compose
  • Same account, history, and billing
Working with email tracking on a laptop
/ two clients · one account

Built for Outlook and Gmail

Microsoft sign-in for Outlook. Google sign-in for Gmail. One account shares opens, clicks, reminders, and billing.

Outlook

Microsoft 365 add-in

Track on send, open the task pane for thread KPIs and Remind Me, and upgrade right from the web app.

Outlook feature guide →
Gmail

Chrome extension

A Track toggle on compose, side-panel analytics, and desktop alerts the moment your mail is opened.

Add the extension

Gmail feature guide →

/ capabilities

Everything you need to follow up with confidence

Open tracking

See exactly when emails were opened, with device and approximate location signals.

Link click tracking

Links route through TrackMail so genuine clicks are counted individually, per URL.

Realtime alerts

Web push in the app and Chrome notifications in Gmail on every open or click.

Reminders & send later

Follow-up conditions and scheduled sends via Microsoft Graph or the Gmail API.

Privacy-minded

OAuth only. Workspace isolation. Published privacy policy and terms.

Free forever option

Keep tracking after the trial with a small watermark — upgrade whenever you like.

View all features →
/ pricing

Start free. Upgrade when you're ready.

Same plans for Outlook and Gmail. No credit card for the trial.

Free

$0 / forever
  • Open & click counts
  • Blurred link URLs
  • TrackMail watermark
Continue free

Trial

7 days Pro, free
  • Same as Pro — no card
  • No watermark · clear links
  • Schedule & reminders
Start free trial

Business

$6.99 / user / mo
  • Everything in Pro
  • Team workspace history
  • Invite & manage seats
See Business
/ from the blog

Tips for better follow-ups

Browse the blog →
/ faq

Questions, answered

Does Flexus TrackMail work with both Outlook and Gmail?

Yes. Use the Outlook add-in with Microsoft sign-in and the Gmail Chrome extension with Google sign-in. One TrackMail account covers both.

How do the double green checkmarks work?

When a tracked message is opened, TrackMail shows double green checks and open counts in your Outlook task pane or Gmail sent view — exactly like a read receipt, without asking your recipient to confirm anything.

Is there a password signup?

No. Sign in only with Microsoft (Outlook) or Google (Gmail) OAuth — nothing new to remember and nothing for us to store.

What happens after the 7-day trial?

You keep Free tracking with a watermark and blurred links, or upgrade to Pro ($3.99/user/mo) or Business ($6.99/user/mo).

How does TrackMail use my Google account data?

Your Google email and profile sign you in. The Gmail send permission is used only for send-later that you schedule. Full detail is in our Google API Disclosure.

/ 7 days pro · no card

Ready to see who opens your mail?

Start your trial with Microsoft or Google. Works in Outlook and Gmail from the first send.

Start free trial