Show HN: I'm killing AI slop spam with a simple Google script

A founder describes building a free Google Apps Script that moves any inbox email from a sender they have never emailed before into a review folder, running once a minute, to filter out AI-generated unsolicited outreach that Gmail's spam filter misses. The author chose this deterministic approach over AI-based filtering to avoid sending emails to an LLM, noting the downside that emails still land in the inbox first and the filter may be over-inclusive.