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Open-source Transactional Email tools

2 SaaS tools with self-hostable alternatives

Mailgun alternatives

Mailgun is a transactional email API for developers, providing reliable SMTP and REST API delivery for application-generated emails (password resets, order confirmations, notifications). It handles bounce processing, unsubscribe management, and delivery analytics. The free tier includes limited monthly sends; paid tiers scale with volume.

1 OSS alts · ★ 16,490

SendGrid alternatives

SendGrid is a cloud email delivery service providing SMTP relay, a REST API, and delivery analytics with managed IP reputation for transactional and marketing email at scale.

1 OSS alts · ★ 16,490