Self-hosted email delivery platform that enables applications to send emails via HTTP APIs while handling SMTP delivery, templates, storage, security, and analytics. Fully self-hostable alternative to services like SendGrid or Mailgun.
Star History
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+13
STARS · LAST 30 DAYS
1
PER DAY
#953
MOST-STARRED Go
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +7 | +13 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +1 | +3 | +10 |
posta gained 13 stars in the last 30 days, about 1 a day, and now has 530. It is about 1 year old and has averaged roughly 530 stars a year. It ranks #953 among Go repositories and #8,517 across all languages on GitHubRepo.
Trending Record
1
DAYS ON TRENDING
#9235
BEST RANK
Oct 17, 2026
FIRST APPEARANCE
Active
STATUS TODAY
posta has maintained a continuous presence across global trending indexes, peaking at #9235. Below is the 30-day activity profile:
💡 Overview
posta is an open-source project written in Go: Self-hosted email delivery platform that enables applications to send emails via HTTP APIs while handling SMTP delivery, templates, storage, security, and analytics. Fully self-hostable alternative to services like SendGrid or Mailgun.
Engineered for speed, consistency, and developer ease, it solves common hurdles in email-relay, email-routing, http-to-smtp. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Go for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ go install github.com/goposta/posta@latest⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Go >= 1.21 runtime environment
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
posta coordinates its core functionality through a modular Go pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with posta.
Model Inference & Prompting
Integrate fast, local or cloud-hosted generative AI models directly into production code.
Context Memory & RAG
Augment language models with dynamic vector retrieval and structured project memory.
Developer Productivity
Automate repetitive engineering tasks, code generation, and test creation using AI agents.
🚀 Getting Started
Install posta using your package manager: `go install github.com/goposta/posta@latest`
Initialize your project workspace or configuration file for posta.
Import posta into your codebase or invoke it directly from your terminal.
Execute your test suite or run `posta --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Go, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
goposta/posta is currently ranked #8,517 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #8,506 | symfony/doctrine-messenger | PHP | ★ 532 | Compare ↗ |
| #8,506 | HydeYYHH/Litube | Kotlin | ★ 532 | Compare ↗ |
| #8,506 | ndycode/codex-multi-auth | TypeScript | ★ 532 | Compare ↗ |
| #8,515 | yaml/go-yaml | Go | ★ 531 | Compare ↗ |
| #8,515 | dial9-rs/dial9 | Rust | ★ 531 | Compare ↗ |
| #8,517 | goposta/posta This Project | Go | ★ 530 | |
| #8,517 | schacon/ticgit | Rust | ★ 530 | Compare ↗ |
| #8,517 | bancolombia/scaffold-clean-architecture | Java | ★ 530 | Compare ↗ |
| #8,517 | allenhutchison/obsidian-gemini | TypeScript | ★ 530 | Compare ↗ |
| #8,517 | karansinghgit/speaktype | Swift | ★ 530 | Compare ↗ |
| #8,517 | citron-neo/emulator | C++ | ★ 530 | Compare ↗ |
Frequently Asked Questions
What does posta do? +
Self-hosted email delivery platform that enables applications to send emails via HTTP APIs while handling SMTP delivery, templates, storage, security, and analytics. Fully self-hostable alternative to services like SendGrid or Mailgun.
What language is posta written in? +
The primary language is Go. Topics include: email-relay, email-routing, http-to-smtp, mail-delivery, mailchimp-alternative.
Is posta actively maintained? +
Yes, the last recorded push was on Oct 16, 2026 with 7 open issues being tracked.
How many stars does posta have? +
posta has 530 stars and 58 forks on GitHub.
How does posta rank among GitHub repositories? +
With 530 stars, goposta/posta is ranked #8,517 globally across all repositories tracked on GitHubRepo and #953 among Go projects.
What license is posta distributed under? +
The repository reports a AGPL-3.0 license. Always verify the repository LICENSE file for legal terms.
