A .NET 8 console application that integrates Gmail with Telegram using OAuth 2.0 authentication. Each user authenticates their own Gmail account through the bot, which then forwards new inbox messages to their Telegram chat with interactive action buttons.
Key Features
🔐 OAuth 2.0 Authentication - Per-user Gmail authentication via web flow
📨 Email Forwarding - Automatically forwards new inbox messages to Telegram
🎛️ Interactive Buttons - Delete, Archive, Star, and Forward actions
🔄 Smart Filtering - Toggle between all emails or unread only with one click
🏷️ Label Management - View and modify Gmail labels
💾 SQLite Persistence - Stores messages, actions, and user credentials