ColdMail Guardian: pre-send filter for cold email

Decide whether a cold email should be sent before it goes out

Problem

Outreach teams blast cold emails with poor results and damaged domain reputation. Some are already using Claude prompts to judge whether an email should be sent at all, signaling a missing quality gate before sending.

Solution

After uploading a recipient list and before sending, evaluate each email on recipient-product fit, personalization, spam triggers, and timing. Provide pass, revise, or skip recommendations with reasons.

Users

Indie hackers doing B2B outreach, small sales teams, and growth operators.

MVP

Import CSV contact lists; generate a 0-100 send score per row; flag high-risk or low-fit entries; offer concrete revision suggestions; export the filtered list.

Revenue

Pay per evaluated email or monthly subscription for bulk processing and CRM integration.

Why now

Cold email tools and AI prompts are booming but focus on sending volume, not quality; filtering before sending protects domains and brands.