Looking for an open-source alternative to Postal? Below are 2 community-built tools that offer similar functionality — all free, open source, and ready to use or self-host. Ranked by GitHub stars.
BillionMail is an open-source, fully self-hosted mail server solution with integrated newsletter and email marketing capabilities. It is designed for developers and businesses seeking powerful, flexible, and cost-effective alternatives to proprietary mailing platforms without any recurring fees.
BillionMail provides an open-source MailServer solution with NewsLetter and Email Marketing capabilities—fully self-hosted, developer-friendly, and free from monthly fees.
The top picks from this list are BillionMail, BillionMail — all maintained, free to use, and self-hostable.
Yes. Every tool listed here is open source and free to use. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Most of the alternatives listed are self-hostable. Check each tool's page for hosting details, system requirements, and licensing terms.
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