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What is SirrMesh? ​

SirrMesh is a decentralized email and messaging platform that combines enterprise-grade email services with modern blockchain technology to create a secure, private, and censorship-resistant communication system.

Overview ​

SirrMesh consists of two main components that work together to provide a complete communication solution:

SirrMesh Server ​

SirrMesh is a composable, all-in-one email server with blockchain authentication support.

Key characteristics:

  • Built in Go for high performance
  • Full SMTP/IMAP protocol support
  • Blockchain wallet signature authentication
  • Flexible message processing pipeline
  • Production-ready deployment tools

Learn more about SirrMesh →

Sirr App ​

Sirr is a decentralized messaging application with an integrated wallet.

Key characteristics:

  • OpenPGP end-to-end encryption
  • No central data storage
  • Built-in BNBChain wallet
  • Red envelope (crypto gift) feature
  • Multi-device synchronization

Learn more about Sirr →

Core Principles ​

Privacy First ​

  • No data collection: We don't collect or store your personal information
  • End-to-end encryption: Messages are encrypted from sender to recipient
  • No tracking: No analytics, no tracking, no surveillance

Decentralization ​

  • No central authority: Anyone can run a mail server node
  • Distributed network: Messages route through a global network
  • Censorship resistant: No single point of failure or control

User Sovereignty ​

  • You control your data: Your messages, your keys, your control
  • Blockchain authentication: Use your wallet as your identity
  • Open source: Fully auditable code under GPL 3.0

How It Works ​

For Email (SirrMesh) ​

  1. Deploy your server: One-click script sets up your email server
  2. Configure authentication: Choose password or blockchain authentication
  3. Use any email client: Works with Thunderbird, Outlook, etc.
  4. Send/receive emails: Fully compatible with standard email

For Messaging (Sirr) ​

  1. Download the app: Available on iOS and Android
  2. Create wallet: Automatic BNBChain wallet generation
  3. Add contacts: By wallet address or QR code
  4. Start chatting: All messages automatically encrypted

Use Cases ​

Personal Use ​

  • Private email: Full control over your email without relying on Gmail/Outlook
  • Secure messaging: Chat with friends and family with true privacy
  • Crypto transfers: Send money as easily as sending a message

Business Use ​

  • Corporate email: Self-hosted email with advanced authentication
  • Team communication: Secure internal messaging
  • Customer service: Encrypted communication with clients

Organizations ​

  • NGOs: Censorship-resistant communication for activists
  • Journalists: Secure source communication
  • Researchers: Private academic collaboration

Why Choose SirrMesh? ​

vs Traditional Email (Gmail, Outlook) ​

  • ✅ You own your data (not a company)
  • ✅ No ads or tracking
  • ✅ True end-to-end encryption
  • ✅ Blockchain authentication option

vs Other Secure Messaging (Signal, Telegram) ​

  • ✅ Truly decentralized (no central server)
  • ✅ Anyone can run a node
  • ✅ Built-in cryptocurrency wallet
  • ✅ Works with standard email

vs Other Email Servers (Postfix, Exchange) ​

  • ✅ Easier to deploy and maintain
  • ✅ Blockchain authentication built-in
  • ✅ Modern, clean architecture
  • ✅ Automated TLS certificates

Getting Started ​

Ready to experience private, decentralized communication?

For Users ​

Download Sirr and start messaging in minutes.

For Server Admins ​

Deploy SirrMesh with our one-click script.

For Developers ​

Explore the architecture and build custom modules.


SirrMesh: Communication Freedom & User Sovereignty 🚀

Released under the GPL 3.0 License.