Tool 3 sources
Postal
Self-hosted email delivery platform with powerful features for transactional and bulk emails, offering full control and customization.
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MailerSend
A curated collection of the best open source alternatives to MailerSend. Each listing includes a website screenshot along with a detailed review of its features.
7 related tools 1 source groups 1 aliases
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Best matching open-source options
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Plunk
Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.
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useSend
Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.
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DoubleZero
00 is an open-source email API and infrastructure solution that allows developers to own and control their email stack.
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Relay
Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.
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Sessy
Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard with real-time search, analytics and reputation monitoring.
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Wraps
Build email templates as React components and automations in TypeScript. Deploy to your AWS account with SES integration. Marketing teams edit content without code.
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