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MailSnitch

MailSnitch

Tag your emails to see who’s selling it

Website chromewebstore.google.com
Overview

What it is

Trust is good. Tagging is better. Automatically tag your email using Plus Addressing or Catch-All method. No manual effort – everything’s saved to history so you can see who’s behind unwanted spam (if you receive it to that tagged mail).

Intent

I need it when

Protect privacy on websites that strip plus-addressing from emails

MailSnitch offers catch-all mode for users with custom domains, generating clean email prefixes (shop001@yourdomain.com) without the '+' symbol. This bypasses data brokers and websites that strip plus-addressed emails, preserving the tracking tag.

Reduce spam by compartmentalizing email usage across different services

By using a different tagged email for each signup, users can isolate spam to specific sources and identify which services are trustworthy. This helps them avoid reusing the same email everywhere and limits exposure when a service is compromised.

Maintain a single inbox while using multiple distinct email identities

MailSnitch uses email plus-addressing (name+tag@gmail.com) or catch-all domains, so all tagged emails route to one inbox. Users get unlimited distinct email identities without managing multiple accounts, and can export or review the full history of tagged emails used.

Automate email tagging during online signups to save time

MailSnitch auto-generates and auto-fills tagged emails when users click into email fields on websites. The extension detects the site name, creates a unique tag, and populates the form automatically, eliminating manual typing and ensuring consistent tagging.

Track which websites or services sold or leaked my email address

MailSnitch generates unique tagged email addresses for each website (e.g., name+google001@gmail.com). When spam arrives at a specific tagged address, the user immediately knows which service leaked or sold the email, eliminating guesswork about data breaches.

Drop

Not a fit when

  • User needs email filtering or spam blocking rather than email tracking and source identification
  • User relies on email providers that do not support plus-addressing or catch-all domains
  • User requires advanced spam detection with machine learning or AI-powered filtering
  • User needs integration with email clients other than web-based Gmail, Outlook, Fastmail, Mailfence, or ProtonMail
  • User wants automatic spam folder management or email rules rather than manual tagging and history tracking
  • User needs real-time alerts or notifications about spam sources instead of manual history review
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Pricing

Free forever, no accounts, no paywalls, no tracking View pricing