In simple English
BillionMail is an email system you run on your own server. You can send newsletters, promotional emails and customer messages without paying a monthly fee to an outside company. It handles the mail server, subscriber lists and templates in one place. You need your own server with a clean IP address to make sure your emails reach people. The software is free to use, but you must spend time setting up your DNS records correctly.
What it is
BillionMail is an open-source email marketing platform and mail server built with Go (a programming language made by Google for fast network services). It bundles standard mail server components like Postfix and Dovecot with a web interface for managing campaigns.
What it is good for
Solo builders and small business owners who want to send newsletters or customer emails without paying rising fees to commercial email services.
- No monthly subscription fees or sending limits.
- Includes campaign analytics to track opens and clicks.
- Runs on your own server so your customer data stays private.
- Requires technical knowledge to configure server DNS and prevent spam blocks.
- Running your own mail server takes ongoing maintenance.
- AGPL-3.0 licence requires you to share changes if you host it for others as a public service.
Mailchimp or SendGrid
Docker (a way to run a program inside its own sealed box, so it cannot break anything else on your server)
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cd /opt && git clone https://github.com/aaPanel/BillionMail && cd BillionMail && bash install.sh