Captchainbox
An email filtering tool that stops AI spam by requiring unknown senders to solve a CAPTCHA or pay a fee to reach your inbox.
Category: AI Productivity
Overview
Captchainbox is an inbox protection service designed to combat AI-generated cold outreach. It automatically filters emails from unknown senders, ensuring only verified humans or relevant contacts reach your primary inbox.
How to use it?
Connect your Gmail or Outlook account to allow the tool to scan your metadata and build a list of trusted contacts. When an unknown sender emails you, they receive a verification link to solve a CAPTCHA or pay a fee, which then delivers their message to your inbox.
Features
Real-time inbox filtering, Calendar invite protection, Trusted contact list, Introduction detection, Spam mitigation, Charitable fee donations
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