octopus-mail: a local email client with AI, Smart Inbox, and your own server

⚡ The gist in 5 seconds - CFGPeter/octopus-mail has been published on GitHub — a free email client built on a local-first model. - It claims a Smart Inbox, built-in AI, a calendar, an agent CLI, and MCP support; data is served by a home server instead of the cloud. - Platforms are Windows and Linux, the code is open; version numbers, license, and system requirements are not specified in the description. ### 🔍 What was found The CFGPeter/octopus-mail project is an open-source email client that positions itself in the repository description as free and local-first. The claimed feature set includes: a Smart Inbox for incoming mail, AI features, a calendar, a separate agent CLI with MCP support, and a home server instead of a cloud backend. The claimed platforms are Windows and Linux. The mechanics are built around abandoning cloud email storage: the home server takes on the backend role, while the client works with data locally — hence the local-first label. The Smart Inbox and AI handle parsing and processing the incoming flow, the calendar covers scheduling within the same app, and the agent CLI and MCP provide programmatic access to the mailbox: MCP (Model Context Protocol) is an open protocol for connecting AI models to external tools and data, meaning the email client can expose mailbox contents to AI agents through it without manual export. Exact parameters — version, license, server requirements — are not disclosed in the project description. ### 💡 Why it matters This is another take on the self-hosted and local-first services niche, where the user pays not with a subscription but with setting up their own server — a direct counterpart to cloud email providers and enterprise solutions. The AI + MCP combination in email is interesting because it turns the mailbox from a passive storage into a data source for agents, all without uploading correspondence to someone else's servers. The main questions are how costly it is to run a home server and how raw the project is; the repository description doesn't answer either.