Inbox rule layer against AI cold-email spam

Spot and mute AI-generated cold outreach before it hits your phone

Problem

Founders receive a growing flood of clearly AI-generated, useless unsolicited emails that Google's spam filter does not flag, so their phones buzz all day, especially in the morning. Existing subscription filters are pricey or require handing mailbox access to a third party, and simple Google scripts are hard to maintain or extend.

Solution

A self-hostable mail filtering layer that connects via Gmail/IMAP, uses light models plus rules to recognize AI cold-email traits (template phrasing, bulk headers, no prior thread), auto-archives or mutes by sender domain, and sends a daily digest while real client mail still notifies normally.

Users

Founders, indie hackers, sales and BD leads with high-inbound public mailboxes

MVP

Gmail/IMAP connection; rule plus small-model cold-email detection; auto-archive/mute by domain; daily digest; custom allowlist

Revenue

Free tier plus monthly subscription; or one-time self-hosted license with an optional hosted plan

Why now

AI has driven cold-email production cost to near zero and inbox noise is spiking, while generic spam filters are nearly useless against compliant-but-useless mail