259+ email tools for developers — transactional APIs, newsletter platforms, and drip campaigns. Alternatives to Mailchimp and SendGrid.
EmailHunter is a minimalistic Ruby wrapper for the Hunter.io API. It provides a straightforward inte
Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mo
📥 Turn your inbox into a kanban board.
Multi channel notification service for collaboration tools, e-commerce, news service and more.
An easy-to-use component-based build system for MJML, the email templating language, with Handlebars
Luke Smith's bash script to completely automate the setup of a Postfix/Dovecot/SpamAssassin/OpenDKIM server on debian
Awesome Opensource Email Resources
Send text/HTML emails with attachments to any SMTP server
Open-source, self-hosted & provider-agnostic email infrastructure.
💌💨 Email Campaign Delivery built with GoLang inspired by GoHugo
Email marketing skill for Claude Code. 55K words, 908 sources, 19 industry playbooks. Install the sk
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a contain