Best Open Source SendGrid Alternatives

Open-source platform for managing subscribers, creating campaigns, and sending bulk emails with advanced features and integrations.

Self-hosted email delivery platform with powerful features for transactional and bulk emails, offering full control and customization.

Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution.

Mautic is a free and open source marketing automation platform that helps businesses manage leads, create campaigns, and analyze results.

Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.

Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.

Open-source email marketing platform offering unlimited subscribers, campaigns, and workspaces. Self-hosted solution with powerful API and beautiful interface.

A comprehensive platform for managing transactional and marketing emails through AWS SES, featuring customer data management, SMS capabilities, and workflow automation.

Self-hosted newsletter platform with powerful features, data protection, and full control over your mailing lists and campaigns.

Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

00 is an open-source email API and infrastructure solution that allows developers to own and control their email stack.

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.

Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard with real-time search, analytics and reputation monitoring.

Build email templates as React components and automations in TypeScript. Deploy to your AWS account with SES integration. Marketing teams edit content without code.

Create and send newsletters with complete privacy protection. No tracking, no data collection - just simple, clean email delivery with customizable templates and archive sites.