Sendportal
Modern open-source email marketing software for newsletters and campaigns. Self-hosted for full data control and cost savings compared to MailChimp and others.
Sendportal is an open-source alternative to:

Email Marketing Software
SendPortal is a modern, open-source email marketing platform designed for self-hosting. It provides a cost-effective alternative to services like MailChimp, allowing businesses to manage newsletters, campaigns, and subscriber lists while maintaining full control over their data.
Key Features
- Self-Hosted & Open Source: Deploy on your own infrastructure for complete data ownership.
- Multi-Provider Support: Works with AWS SES, Mailgun, Sendgrid, Postmark, and Mailjet.
- Subscriber & List Management: Import/export subscribers via API or CSV, create custom segments.
- Campaign Management: Design and send beautiful email campaigns with customizable templates.
- Message Tracking: Monitor opens, clicks, bounces, and unsubscribes automatically.
- Multiple Workspaces: Manage multiple teams or projects within a single interface.
- Unlimited Users & Subscribers: No artificial limits on users, subscribers, or messages.
- Powerful API: Integrate seamlessly with existing workflows and applications.
- Cost Savings: Significantly cheaper than MailChimp, Campaign Monitor, and similar services.
Tech / Self-Hosting
SendPortal is built with Laravel and can be installed as a package or via Docker. It requires a database (MySQL/PostgreSQL) and a mail delivery service (e.g., AWS SES). Full documentation is available at SendPortal Docs.