email_server
The premium Open Source alternative to Mailgun
🎯 Best for:Internal applications requiring a simple, fast way to send automated notifications.
What is email_server?
An open source alternative to Mailgun for internal application alerts. It is a standalone Go binary designed for high-speed mail delivery within private networks using specific accounts.
Tech Stack
GoBackend & Auth
Why email_server?
- • Fast Go execution
- • Simple configuration
- • No external dependencies
Limitations
- • Basic feature set
- • No analytics dashboard
- • Limited documentation
1/26/2026
Last Update
1
Forks
2
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to email_server instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Mailgun)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%