So many people asked me to make it open-source, so here you go:
MailCheap — Self-hosted newsletters on Amazon SES:
💸 $0.10 per 1,000 emails
✍️ Editor with live preview
📰 Multiple newsletters
📝 Signup forms + API
🌐 Public archive
📊 Stats & growth charts
🧹 List cleanup
📬 B…↗