Mailcastr - Email tracker for free.

Know when your emails are read.

Mailcastr is a powerful email tracking Chrome extension designed for Gmail and Gsuite users who want to know exactly when their emails are opened and interacted with. By embedding a transparent tracking pixel, Mailcastr notifies users in real-time about email opens, link clicks, and the devices used to view the messages. Users can conveniently access detailed tracking data both through the web dashboard and a dedicated Android app.

Ideal for professionals seeking to improve email engagement, Mailcastr offers seamless integration with Gmail's interface and supports Microsoft Edge as well. It provides insights such as the number of times an email is opened, location data, and device type. Notifications help users send more strategically timed follow-ups and increase reply rates up to tenfold. As a free alternative to services like Mailtrack and Yesware, Mailcastr enhances productivity for anyone sending emails from Gmail, making it an essential tool for smarter communication.

By:
Mailcastr
Users:
1,849 -21
Rating:
1.00
(2)
Version:
3.6.14 Last updated: 2021-12-15
Creation date:
2021-12-15
Risk:
High risk impact Moderate risk likelihood
Permissions:
  • https://mail.google.com/*
  • *://*.googleusercontent.com/proxy/*
  • *://*.mailcastr.com/*
  • storage
  • webRequest
  • webRequestBlocking
Size:
1.57MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Edge Add-on Store
Data ingested on:
2025-07-10

Other platforms

Mailcastr - Email tracker for free. (v3.6.14)
3,000 4.35 (103)

User reviews

You cannot use the free version without branding in every email you send! pointless!
by אי*****, 2024-04-03

请你说明你不支持 microsoft 邮箱, 你 trustpilot 的 score 只有 4.
by *****, 2023-04-13
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Mailcastr - Email tracker for free. requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: {{requestedDomains}}
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that an Edge add-on may turn malicious. This is determined by the publisher and the Edge add-on reputation on Edge Add-on Store, the amount of time the Edge add-on has been around, and other signals about the Edge add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing an Edge add-on.

Mailcastr - Email tracker for free. is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** *** **** *******
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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