<p>Tyr is a revolutionary Android application that provides true peer-to-peer email communication using the Yggdrasil mesh network. Unlike traditional email systems that rely on centralized servers, Tyr runs a complete email server directly on your device.</p><p><b>Key Features:</b></p><ul><li><b>True P2P Email</b> - No central servers, no cloud infrastructure. Your device IS the email server.</li><li><b>Built-in Tyr Chat</b> - Native P2P messenger built directly into the app. No third-party client required. Send messages and photos over Yggdrasil instantly.</li><li><b>Yggdrasil Integration</b> - Built on the Yggdrasil overlay mesh network providing secure, end-to-end encrypted connections.</li><li><b>Standard Protocols</b> - Exposes SMTP/IMAP protocols on localhost, compatible with standard email clients like DeltaChat.</li><li><b>Privacy First</b> - All data stays on your device. Encrypted configuration backup with AES-256-GCM encryption.</li><li><b>DeltaChat Ready</b> - Seamless integration with DeltaChat for instant messaging over email.</li><li><b>Cryptographic Identity</b> - Your email address is derived from your Ed25519 public key, ensuring authenticity.</li><li><b>Mesh Networking</b> - Connect via public Yggdrasil peers or configure your own custom peers.</li><li><b>Battery Optimized</b> - Sophisticated power management with timed wake locks and network monitoring.</li><li><b>Secure by Design</b> - Password protection using Android Keystore with EncryptedSharedPreferences.</li><li><b>Backup &amp; Restore</b> - Export and import all settings with optional inclusion of your cryptographic keys.</li></ul><p><b>Technical Details:</b></p><p>The app runs a foreground service that manages the native Yggmail library (Go-based), providing SMTP on port 1025 and IMAP on port 1143 (localhost only). Your mail address format is: &lt;64-hex-characters&gt;@yggmail, cryptographically derived from your Ed25519 key pair.</p><p><b>Perfect For:</b></p><ul><li>Privacy enthusiasts