* [MillionSend v0.10.0](https://github.com/MillionSend/millionsend) – Resend-compatible self-hosted email platform that sends, batches, and manages suppression, contacts, templates, webhooks, and dashboards with AWS SES support.

* [Warmbly v0.6.49](https://github.com/warmbly/warmbly) – AI-native cold email campaigns and inbox warmup platform that runs from your mailboxes, capturing opens and replies in a shared dashboard.