A lightweight and flexible Sendmail DNSBL & DNSWL mail filter (milter). dnsbl-milter consults a set of DNS black lists and white lists to determine if messages from particular hosts should be accepted.
⚡ Executive Summary & Quick Facts
Authoritative Sourcednsbl-milter is dnsbl-milter is an open-source project written in C: A lightweight and flexible Sendmail DNSBL & DNSWL mail filter (milter). dnsbl-milter consults a set of DNS black lists and white lists to determine if messages from particular hosts should be accepted..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of October 2026), hloeung/dnsbl-milter has accumulated 1 GitHub stars and 3 forks. It is written in C, licensed under GPL-3.0, and ranks #37,660 globally. It is actively maintained with the latest commit recorded on Aug 17, 2014.”
| Repository | hloeung/dnsbl-milter ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | C |
| Software License | GPL-3.0 |
| Community Traction | ★ 1 stars · ⑂ 3 forks · #37,660 globally |
| Maintenance | ● Active (Last commit: Aug 17, 2014) · 0 open issues |
| Target Audience | Developers and engineering teams building with C, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 58/100 · Grade DNote: dnsbl-milter displays slower maintenance activity. Continuous telemetry recorded the last code commit on Aug 17, 2014 (4458 days ago). Supported by 1 stars and 3 community forks, this repository holds a calculated health index of 58/100, reflecting dormant (4458 days since last push) and healthy issue cadence.
Star History
Add Live Star History & Verified Badges to README.md
Keep your repository README looking professional and dynamic. As our continuous crawler records new stars, these official SVG badges update in real time with zero maintenance.
Renders your high-resolution star trajectory chart right inside your GitHub README or project docs.
[](https://githubrepo.cloud/repo/hloeung/dnsbl-milter?utm_source=readme_chart)Compact badges for your README header. Real-time stars, velocity, health audit, and rank.
[](https://githubrepo.cloud/repo/hloeung/dnsbl-milter?utm_source=readme_badge) [](https://githubrepo.cloud/repo/hloeung/dnsbl-milter?utm_source=readme_badge) [](https://githubrepo.cloud/repo/hloeung/dnsbl-milter?utm_source=readme_badge) [](https://githubrepo.cloud/repo/hloeung/dnsbl-milter?utm_source=readme_badge) [](https://githubrepo.cloud/repo/hloeung/dnsbl-milter?utm_source=readme_badge)Momentum
+0
STARS · LAST 30 DAYS
1
PER DAY
#1,306
MOST-STARRED C
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +0 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +0 | +10 |
dnsbl-milter gained 0 stars in the last 30 days, about 1 a day, and now has 1. It is about 17 years old and has averaged roughly 0 stars a year. It ranks #1,306 among C repositories and #37,660 across all languages on GitHubRepo.
Trending Record
29
DAYS ON TRENDING
#18002
BEST RANK
Sep 30, 2026
FIRST APPEARANCE
Active
STATUS TODAY
dnsbl-milter has maintained a continuous presence across global trending indexes, peaking at #18002. Below is the 30-day activity profile:
💡 Overview
dnsbl-milter is an open-source project written in C: A lightweight and flexible Sendmail DNSBL & DNSWL mail filter (milter). dnsbl-milter consults a set of DNS black lists and white lists to determine if messages from particular hosts should be accepted.
Engineered for speed, consistency, and developer ease, it solves common hurdles in C. 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 C 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
$ git clone https://github.com/hloeung/dnsbl-milter.git
cd dnsbl-milter⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C99 or C11 compiler with CMake / make
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
dnsbl-milter coordinates its core functionality through a modular C 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
Production System Integration
Embed dnsbl-milter into C backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open GPL-3.0 license.
🚀 Getting Started
Install dnsbl-milter using your package manager: `git clone https://github.com/hloeung/dnsbl-milter.git`
Initialize your project workspace or configuration file for dnsbl-milter.
Import dnsbl-milter into your codebase or invoke it directly from your terminal.
Execute your test suite or run `dnsbl-milter --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
hloeung/dnsbl-milter is currently ranked #37,660 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #34,577 | ProjectMoon/fbg | Java | ★ 2 | Compare ↗ |
| #34,577 | lysol/pglunchbox | Python | ★ 2 | Compare ↗ |
| #34,577 | whitethunder/earnings_estimates | Ruby | ★ 2 | Compare ↗ |
| #34,577 | eklitzke/drifter | JavaScript | ★ 2 | Compare ↗ |
| #34,577 | cdata/MaNGOSX | Objective-C | ★ 2 | Compare ↗ |
| #37,660 | hloeung/dnsbl-milter This Project | C | ★ 1 | |
| #37,660 | prepor/prepor-ru | PHP | ★ 1 | Compare ↗ |
| #37,660 | dfugere/flat_lady | Ruby | ★ 1 | Compare ↗ |
| #37,660 | openmoney/openmoney-plugin | — | ★ 1 | Compare ↗ |
| #37,660 | mayo/timetravel | Ruby | ★ 1 | Compare ↗ |
| #37,660 | devrieda/cookie_crumbs | Ruby | ★ 1 | Compare ↗ |
Frequently Asked Questions
What does dnsbl-milter do? +
A lightweight and flexible Sendmail DNSBL & DNSWL mail filter (milter). dnsbl-milter consults a set of DNS black lists and white lists to determine if messages from particular hosts should be accepted.
Is dnsbl-milter actively maintained in 2026? +
Note: dnsbl-milter exhibits slower recent commit activity. The latest code push was recorded on Aug 17, 2014 (4458 days ago). It holds a calculated Maintenance Health Score of 58/100 (D rating) with 1 stars and 0 open issues.
What language is dnsbl-milter written in? +
The primary language is C. Topics include: software.
How many stars does dnsbl-milter have? +
dnsbl-milter has 1 stars and 3 forks on GitHub.
How does dnsbl-milter rank among GitHub repositories? +
With 1 stars, hloeung/dnsbl-milter is ranked #37,660 globally across all repositories tracked on GitHubRepo and #1,306 among C projects.
What license is dnsbl-milter distributed under? +
The repository reports a GPL-3.0 license. Always verify the repository LICENSE file for legal terms.
