InBox Wall

InBox Wall is a local-first Python application designed to secure AI email assistants by sanitizing incoming email HTML. It removes hidden text via CSS tricks, invisible Unicode characters, and known prompt injection patterns to ensure AI agents only process clean, safe email text. It fetches emails in read-only mode, processes and stores clean text separately from quarantined threats, and exposes a secure local API and protocol for AI integration, protecting against hidden instruction attacks in emails.