SendGrid is a cloud-based email delivery platform that provides transactional and marketing email services with APIs for developers.. There are currently 3 open-source alternatives to SendGrid, with a combined total of 34.5k GitHub stars. The most common language among these projects is Ruby.
Showing 3 open-source alternatives
A fully featured open source mail delivery platform for incoming and outgoing email, designed as a self-hosted alternative to SendGrid and Mailgun.
A fully featured open source mail delivery platform for incoming and outgoing email, designed for websites and web servers.
A 100% open-source, privacy-focused email service with forwarding, SMTP, IMAP, POP3, CalDAV, and CardDAV support.
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