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RepoQuarry

BillionMail Billionmail/BillionMail

Self-hosted mail server plus email marketing from the aaPanel team; contacts, tags, templates, campaigns and open/click stats, sending from your own server.

Creator kit + Compare GitHub ↗ Install guide (official) ↗

BillionMail at a glance

Checked 16 Oct 2026

BillionMail (15.9k stars, v4.9 Dec 2025, last push June 2026) bundles a Postfix/Dovecot mail server, Roundcube webmail and an email-marketing panel: contacts with lists and tags, templates with variables and spintax, scheduled campaigns, a send API and delivery, open and click-through dashboards. AGPL-3.0. It sends from your own server, so no sending service is required, but outbound port 25 must be open and deliverability is up to you (an SMTP relay is optional). Linux only, 1 core / 1 GB RAM minimum. It also markets itself for cold outreach. No automations or paid subscriptions are listed.

Cite this pageRepoQuarry. “BillionMail.” Checked 16 Oct 2026. https://repoquarry.dev/projects/billionmail

How much of Mailchimp does it replace?

3 of 5 jobs. Lists, campaigns and stats on your own mail server; no automations, forms or landing pages listed.

Partial: Subscriber lists and segments Partial replacement
Partial: Campaign editor and templates Partial replacement
No: Automations and drip sequences Not covered
No: Signup forms and landing pages Not covered
Partial: Open and click analytics Partial replacement

For automations and drip sequences, signup forms and landing pages, see other Mailchimp alternatives. You may also need to build an interface, an API server and hosting yourself.

Facts, with sources

Every answer links to where we found it. We read the documentation; we did not install it.

Report a correction
QuestionAnswerSourceChecked
Runs on my machine? Confirmed: Self-hosted on a Linux server via install script, Docker Compose or aaPanel cd /opt && git clone https://github.com/aaPanel/BillionMail && cd BillionMail && cp env_init .env && docker compose up -d || docker-compose up -d github.com · BillionMail#other-installation-methods ↗ today
Code licence Partial: AGPL-3.0 (copyleft) BillionMail is licensed under the AGPLv3 License. github.com · BillionMail#license ↗ today
Model weights licence Confirmed: No separate model weights github.com · BillionMail#readme ↗ today
Commercial use Partial: Yes under AGPL-3.0 copyleft terms BillionMail is licensed under the AGPLv3 License. github.com · BillionMail#license ↗ today
Paid services needed? Confirmed: None required; built-in mail server sends directly if outbound port 25 is open, SMTP relay optional Submit a ticket to the server provider to open port 25. Use an SMTP relay server for forwarding billionmail.com · preparation.html ↗ today
Hardware Confirmed: Minimum 1 CPU core, 1 GB RAM, 20 GB disk CPU: 1Core RAM: 1GB Hard disk: 20GB billionmail.com · preparation.html ↗ today
Operating systems Partial: Linux only (amd64 and arm64) Currently only the Linux operating systems that support amd64 and arm64 architectures. billionmail.com · preparation.html ↗ today
Setup effort Confirmed: Medium; one install script or Docker Compose, then DNS (SPF, DKIM, DMARC) and open mail ports Please check whether the port of BillionMail is open and not used by other applications billionmail.com · preparation.html ↗ today

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