Open Source Mail Servers
A curated collection of the best open source self-hosted servers that send, receive and store email for your own domain over SMTP, IMAP and JMAP.
Open-source mail server with unlimited sending & AI tools
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15,890Last commit
4 months agoLicense
AGPL-3.0
Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution.
Open Source Alternative to:
Postiz – The All-in-One agentic social media scheduling tool
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