Is Block Sender safe?
Block Sender sends Gmail sender and recipient details to its Block Sender API when you create blocks.
When you use Block Sender's Gmail blocking features, it reads message details such as sender email, sender name, subject, domain, and recipient addresses from the selected email or thread. It sends that metadata with authenticated requests to the Block Sender API to create or manage blocking rules.
Who publishes itBlockSender.io - no other listings under this identity
BlockSender.io - no other listings under this identity
What this publisher told the store about itself, and the other listings that told it the same thing.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 5.0.5. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Read and change your data on blocksender.io
*://*.blocksender.io/*
Read and change your data on mail.google.com
https://mail.google.com/*
See the address and title of every tab you have open
tabs
Store data in your browser
storage
Where it sends data
Destinations our analysis observed Block Sender contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- api.blocksender.io
Block Sender sends data to api.blocksender.io. No other extension we have analysed sends data here.