Block Sender

Name: Block Sender
Rating: 3.656517602283539 (1051 reviews)
Author: https://blocksender.io

Block annoying emails in Gmail™. Say goodbye to unwanted newsletters, individuals, and other uninvited email senders.

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Block Sender: Ultimate Email Blocking for Gmail™

Block Sender is a powerful Chrome extension designed to give you control over your Gmail inbox by permanently blocking unwanted emails. Whether it's pesky newsletters, harassing individuals, or unwanted domains, Block Sender lets you block them instantly with a simple click. It offers automatic fake error messages to send back to the sender, fooling them into thinking your email doesn't exist.

Key Features

One-click blocking of email addresses, domains, subject lines, keywords, and IP addresses.
Automatically sends fake "This email address doesn't exist" error messages or customizable block notifications.
Flexible management of blocked emails: trash, delete, or archive them silently.
Supports advanced filtering beyond Gmail's native capabilities.
Anonymous blocking ensures senders are unaware unless you notify them.
Free plan with essential features and pro plans for advanced use and higher limits.

Block Sender enhances your Gmail experience by eliminating unwanted distractions and spam, making your inbox cleaner and easier to manage. Perfect for individuals tired of unsolicited emails and businesses seeking better email control.

Extension Productivity Privacy & Security Communication

By:

https://blocksender.io

Users:

20,000

Rating:

3.66

(1,051) 1 new ratings

Version:

5.0.4 Last updated: 2024-08-21

Creation date:

2020-01-08

Risk:

Permissions:

tabs
storage

Host permissions:

*://*.blocksender.io/*
https://mail.google.com/*

Size:

2.51MB

Email:

su*****@blocksender.io

URLs:

Website ,Privacy policy

Full description:

Source:

Chrome Web Store

Updated:

18 hours ago

Ranking

# 4,822 ▼ 74

Other rankings

#445 in Workflow & Planning ▲ 2

#51 in upgrade keyword 4

#54 in error keyword 18 ▲ 1

#60 in block keyword 65 ▼ 1

#79 in month keyword 8 ▲ 4

Upgrade to see more rankings

User reviews

Block Sender is praised for effectively blocking spam and unwanted emails with useful features like bounce-back and multi-account linkage, backed by responsive customer support. However, multiple users report issues with account creation and login, find the subscription costly, and note occasional inconsistent blocking and confusing setup. Despite mixed reviews, many find it valuable for managing spam and harassment emails.

Pros

Effectively blocks spam, scam, and unwanted emails, helping users maintain a clean inbox.
Provides useful features like bounce-back responses and customizable filters for blocking senders.
Responsive and helpful customer support with quick issue resolution.
Allows linking multiple email accounts for consistent blocking across accounts.
Users report significant improvement in managing spam, especially helpful in cases of harassment or stalking.

Cons

Difficulties with account creation and sign-in, with some users unable to register or log in through the extension.
The extension can be expensive, requiring a yearly subscription for full functionality.
Some users experienced lack of or delayed customer support.
Initial setup can be confusing, requiring careful reading of documentation to use effectively.
Inconsistent blocking behavior reported, such as blocked emails remaining in spam folder or the tool blocking emails not intended to be blocked.

Recent reviews

Requires invasive permissions and paid subscription to bounce spam emails.

ja*****, 2025-06-17

Installed the extension; cannot create an account. I hit "Submit" and nothing happens at all. Can't use the extension if I can't open an account.

Bo*****, 2025-06-11

This email blocker is absolutely fantastic! It’s drastically reduced the amount of spam and unwanted emails I receive every day. My inbox is so much cleaner now, and I can actually find the important messages without digging through junk. It’s easy to set up, works quietly in the background, and has saved me a ton of time. If you're tired of email clutter, this is a must-have tool!

Ma*****, 2025-06-04

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.

Block Sender requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. 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 a Chrome extension.

Block Sender has earned a good reputation and can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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