HomingPigeon
Safe, compliant cold email for small businesses
The problem
Small businesses burn their domain reputation on outreach they don't understand, and end up permanently in spam folders.
What I built
A cross-platform desktop app that checks your SPF, DKIM and DMARC setup before you send a single message, then ramps volume gradually from ~20 a day with randomised delays, office-hours scheduling and holiday awareness. It scores messages for spam signals before they go, validates contacts on import, reads the inbox for bounces, handles unsubscribes with proper List-Unsubscribe headers and halts automatically if failures spike. Everything stays on the user's machine, with credentials encrypted through the OS keystore.
Currently in public beta — my most-starred repository.