email-api

millionsend

+25

The open-source email platform — self-host on your own AWS SES, or use the cloud. Resend-compatible API.

notifuse

+12

Open-source, self-hosted newsletter, email marketing and transactional email platform. Visual MJML editor, Liquid templating, 7 sending providers.

open-agent-email

+8

Open-source email infrastructure for AI agents: secure inboxes, REST and MCP APIs, SMTP, human approval workflows, signed webhooks, and Python and TypeScript SDKs. Self-host with Docker and PostgreSQL.