Chrome Web Store
110Versions
1Code reviewed

No malware found

In code review (v2.4.10)

Our reviewer read version 2.4.10 — the most recent version we have reviewed — and found no malicious behaviour. The version shown here has not been individually reviewed yet.

106 indicators in this extension

106 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

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What our analysis found

MailTracker: Email tracker for Gmail, used by 200,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can inject scripts into pages. It comes from a trusted publisher and was last updated in October 2026.

Analyst notes

The extension is a legitimate email tracking tool that integrates with Gmail. All network requests are sent to first-party domains ([domain withheld], [domain withheld]) aligned with the publisher's privacy policy and disclosed data collection categories. Permissions like scripting, declarativeNetRequest, and host permissions for [domain withheld] are required for email tracking functionality. The ML model likely flagged the extension due to broad permissions and high counts of network-related API usage in minified bundles, but no malicious behavior was found in the source code.

MailTracker: Email tracker for Gmail

MailTracker: Email tracker for Gmail Chrome extension security report

ID: pgbdljpkijehgoacbjpolaomhkoffhnl

Supported Languages

🇧🇷Brazilian Portuguese
🇬🇧British English
🇺🇸English
🇫🇷French
🇩🇪German
🇮🇹Italian
🇲🇽Latin American Spanish
🇵🇹Portuguese
🇪🇸Spanish
🇺🇸US English

Extension Info & Metadata

Status
Active
Version
2.5.3
Size
11.76 MB
Rating
4.7/5
Reviews
5,300
Users
200,000
Type
Extension
Updated
Oct 4, 2026
Category
Communication
Price
Free
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
2extensions
All still listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
Mail Automation Inc.
Extensions
2
Active
2
Obsolete
0
Listed
2
Unlisted
0
Users
201,000

Screenshots & videos

Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5
Screenshot 6

Install growth

Item
Type
Severity
Description
declarativeNetRequest
Permission
Critical
This permission allows the extension to define rules to block, redirect, or modify network requests. Rated Critical because it can control all network traffic, potentially blocking security updates or redirecting to malicious sites.
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 20% increase: Access to sensitive domains increases potential impact
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
*://mail.google.com/
Host
Medium
Host permission — access limited to this URL pattern.
*://mailtracker.hunter.io/
Host
Medium
Host permission — access limited to this URL pattern.
Access to Sensitive Domains
Risk Factor
Medium
This extension requests access to sensitive domains: *://mail.google.com/

106 indicators in this extension

106 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

Track if your emails are opened & how many times. Be notified when your emails are read with our advanced Email Tracking extension.

Read the publisher’s full description

MailTracker – The Best Gmail Email Tracking Extension MailTracker is a powerful Gmail email tracker trusted by over 100,000 users. Receive real-time alerts and detailed insights whenever your emails are opened, so you can follow up at the perfect moment. With simple, one-click installation, MailTracker seamlessly integrates into your Gmail account to help you stay on top of every outbound email—scheduled or otherwise. Key Features • Real-Time Email Tracking Know exactly when and how many times your emails are opened. MailTracker’s invisible tracking pixel notifies you immediately whenever a recipient views your message. • Scheduled Email Tracking MailTracker is one of the only solutions that lets you track emails you’ve scheduled to send later. Stay informed even when your messages go out at a future date. • Multiple Inbox Support Connect all your Gmail accounts for multi-account tracking in one place. Easily switch between inboxes without losing visibility. • Individual Recipient Tracking in Group Emails Track exactly who opens your email when you send to multiple recipients. MailTracker identifies each recipient’s open activity so you can follow up accordingly. • IP Location with Link Tracking See where your recipients click links. Identify IP-based locations to gain extra insights into your email engagement. • One-Click Read Receipts Get immediate, easy-to-read confirmation of email opens—no complicated steps required. • CSV Export Export your open and click data for advanced analytics and reporting. Perfect for teams that want in-depth metrics or need to integrate with other tools. • Privacy-Friendly & GDPR-Compliant We never read your emails, store IP addresses, or share data with third parties. MailTracker is fully GDPR-compliant and undergoes Google-audited security checks for a trustworthy experience. • No Branding or Signatures Keep a professional, ad-free look: we don’t add logos or footers to your outgoing emails. • High Deliverability By sending directly through your native Gmail account (not a separate API), MailTracker ensures high deliverability so your emails are less likely to end up in spam. Instant Alerts & Reminders Get real-time alerts via email or Chrome notifications the moment your message is opened. You can also receive reminders if an email remains unopened for 48 hours, ensuring you never miss an opportunity to re-engage. Email Activity Feed Access a centralized, up-to-date feed of all recently opened emails. Easily spot which messages remain unopened and follow up with a single click. Fully Integrated with Gmail 1. Compose Window: Toggle tracking on/off for each new email (including scheduled ones). 2. Inbox View: Instantly see which messages are read or unread via MailTracker icons. 3. Conversation View: Review the complete open history and details right inside Gmail. Free Plan & Premium Options • Free Plan: Track up to 20 emails per month with unlimited history, alerts, and notifications. • Premium Plans: Unlock unlimited tracking across multiple Gmail accounts. All premium plans include every feature—choose the plan that fits your team size and workflow. Use Cases • Timely Follow-Ups: Send a friendly nudge when you see your prospect or client has opened (or not opened) your email. • Job Interviews: Know if a recruiter or hiring manager has viewed your resume or follow-up messages. • Quotes & Invoices: Verify when your clients receive crucial payment information and respond promptly if needed. • Real Estate Agents: Track property listings or contract details you’ve shared, so you can engage clients at the right moment. • Prospecting: Monitor opens and clicks during email outreach campaigns to optimize your sales or lead generation efforts. Frequently Asked Questions (FAQ) How do I know if someone opens my email? MailTracker adds an invisible tracking pixel to your email. As soon as your recipient opens it, we detect that event and send you an alert (via email or Chrome notification). How does Email Tracking work? When an email is opened, the tracking pixel loads on the recipient’s device. We record the open event, the time, and the device used—without ever accessing the content of your email. Can someone see if I use an email tracker? MailTracker doesn’t insert visible branding or signatures, so recipients generally won’t notice. However, some users may have browser or email security settings that detect trackers. MailTracker is designed to be discreet, but full invisibility cannot be guaranteed if a user’s security software flags all tracking pixels. Why Choose MailTracker? • Built by Hunter.io: A leading email-finding platform with over three million users and trusted by companies like Google, IBM, Adobe, and Microsoft. • Simple Setup: Quick Chrome extension—no technical expertise required. • Data Privacy & Security: We never store or read the content of your emails. • Proven Reliability: Over 150,000 active users rely on MailTracker for precise email open tracking and link click insights. How MailTracker Works MailTracker adds a tiny, invisible image to your outbound emails. When your recipient opens the email, that image loads, allowing us to instantly inform you. We also detect the device type—desktop, mobile, or tablet—for better engagement insights. Ready to Elevate Your Email Outreach? Install MailTracker today and experience a new level of efficiency and clarity in your Gmail. Stay on top of every conversation, know exactly when to follow up, and take full control of your email communication—even for scheduled messages! Website: https://getmailtracker.com Twitter: @getmailtracker Make every email count with MailTracker—the easiest, most secure way to see who’s opening your Gmail messages.

User reviews

Extension files

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URLs
106

URLs

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No URLs found
No IP addresses found

106 indicators in this extension

106 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
2.4.8
Latest
11.76 MBNot scanned—
5570855d67f48771717d1f16242b199d96b881e653c8225d0469c1bb2d02a5dd
2.5.3
11.76 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.5.2
11.76 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.5.0
11.77 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.4.10
11.76 MBNo malware found0
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.4.9
11.76 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.4.7
11.76 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.4.6
11.75 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.4.5
11.74 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
2.4.4
11.74 MBNot scanned—
4301dd282e9dc07aec71bd3ec758b439143f476e814972c5d5ef4c2633260ccb
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Code Diff

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