Head-to-Head Comparison · Alternative to Mailgun · 📬 email
Mailgun vs Billion Mail
Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution. Here is how Billion Mail ($0/mo open source) stacks up against Mailgun ($15/mo) across cost, hosting, data privacy, and real-world trade-offs.
Billion Mail is a verified Open Source-licensed open-source replacement for Mailgun. Switching from Mailgun ($15/mo) saves $180/yr per solo seat, or $900/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Mailgun.
Billion Mail
$0.00/mo · Open Source
Mailgun vs Billion Mail Specifications
facts verified 2026-11-07
| Dimension | Mailgun (Paid) | Billion Mail (Replacement) |
|---|---|---|
| Monthly Price | $15 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $180 / yr | $0 / yr (Save $180) |
| 1-Year Cost (5 seats) | $900 / yr | $0 / yr (Save $900) |
| 1-Year Cost (10 seats) | $1,800 / yr | $0 / yr (Save $1,800) |
| Source & License | Proprietary SaaS | open source Open Source |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 16.2k (active nov 2026) |
Deep Dive: Switching from Mailgun to Billion Mail
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed Mailgun.
How to deploy Billion Mail
Clone https://github.com/aapanel/billionmail or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork Billion Mail instead of vibe-coding a Mailgun clone?
Instead of paying recurring SaaS fees for Mailgun or rebuilding it from scratch, deploy one of the 7 battle-tested open-source alternatives like Billion Mail.
Mailgun vs Billion Mail FAQ
Is Billion Mail a good free alternative to Mailgun?+
Yes. Billion Mail is a verified open-source (Open Source) replacement for Mailgun. Self-hosted email marketing platform with unlimited sending, AI-powered email creation, real-time analytics, and no monthly fees. Complete SMTP solution.
What is the catch when switching from Mailgun to Billion Mail?+
Requires self-hosting setup, updates, and server maintenance compared to managed Mailgun.
How much do you save switching from Mailgun to Billion Mail?+
Mailgun costs $15/mo ($180/yr) per seat, whereas Billion Mail is $0/mo. Switching saves $180/yr for a solo user, $900/yr for a 5-person team, and $1,800/yr for a 10-person team.
How do I install or self-host Billion Mail instead of Mailgun?+
Install: Clone https://github.com/aapanel/billionmail or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
