InBox Wall is an open-source Python tool that sanitizes email HTML before a local AI assistant processes it. It connects via read-only IMAP, uses inheritance-aware CSS parsing to detect hidden text, and quarantines threats in a separate local database.
• Runs entirely on your machine (no cloud processing)
• Dual-database isolation (AI cannot access the vault)
• Includes a leak-based benchmark (0.00% payload leak rate on the sample corpus)