A cross-platform .NET library for IMAP, POP3, and SMTP.
Star History
Momentum
+171
STARS · LAST 30 DAYS
6
PER DAY
#36
MOST-STARRED C#
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +42 | +171 | +540 |
| Per day | 6 | 6 | 6 |
| Forks gained | +4 | +17 | +43 |
MailKit gained 171 stars in the last 30 days, about 6 a day, and now has 6.9K. It is about 13 years old and has averaged roughly 527 stars a year. It ranks #36 among C# repositories and #880 across all languages on GitHubRepo.
Trending Record
1
DAYS ON TRENDING
#1597
BEST RANK
Sep 28, 2026
FIRST APPEARANCE
Active
STATUS TODAY
MailKit has maintained a continuous presence across global trending indexes, peaking at #1597. Below is the 30-day activity profile:
💡 Overview
MailKit is an open-source project written in C#: A cross-platform .NET library for IMAP, POP3, and SMTP.
Engineered for speed, consistency, and developer ease, it solves common hurdles in c-sharp, dkim, email. 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/jstedfast/MailKit.git
cd MailKit⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C# environment and standard tooling
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
MailKit 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
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with MailKit.
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 MailKit using your package manager: `git clone https://github.com/jstedfast/MailKit.git`
Initialize your project workspace or configuration file for MailKit.
Import MailKit into your codebase or invoke it directly from your terminal.
Execute your test suite or run `MailKit --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
jstedfast/MailKit is currently ranked #880 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #875 | rabbitmq/rabbitmq-tutorials | Java | ★ 6.9K | Compare ↗ |
| #876 | sqldelight/sqldelight | Kotlin | ★ 6.9K | Compare ↗ |
| #877 | external-secrets/external-secrets | Go | ★ 6.9K | Compare ↗ |
| #878 | zai-org/ZCode | TypeScript | ★ 6.9K | Compare ↗ |
| #879 | Osmantic/ODS | Python | ★ 6.9K | Compare ↗ |
| #880 | jstedfast/MailKit This Project | C# | ★ 6.9K | |
| #881 | drumih/turbo-fieldfare | Swift | ★ 6.8K | Compare ↗ |
| #882 | django-extensions/django-extensions | Python | ★ 6.8K | Compare ↗ |
| #883 | fullstackhero/dotnet-starter-kit | C# | ★ 6.8K | Compare ↗ |
| #884 | momenbasel/PureMac | Swift | ★ 6.8K | Compare ↗ |
| #885 | igorwojda/android-showcase | Kotlin | ★ 6.8K | Compare ↗ |
Frequently Asked Questions
What does MailKit do? +
A cross-platform .NET library for IMAP, POP3, and SMTP.
What language is MailKit written in? +
The primary language is C#. Topics include: c-sharp, dkim, email, imap, imap-client.
Is MailKit actively maintained? +
Yes, the last recorded push was on Sep 27, 2026 with 10 open issues being tracked.
How many stars does MailKit have? +
MailKit has 6,857 stars and 867 forks on GitHub.
How does MailKit rank among GitHub repositories? +
With 6,857 stars, jstedfast/MailKit is ranked #880 globally across all repositories tracked on GitHubRepo and #36 among C# projects.
What license is MailKit distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
