Fluxmail で何ができる？

Fluxmail is self-hosted email infrastructure for agents and apps. It connects to Gmail, Microsoft 365, Outlook.com, and IMAP/SMTP mailboxes. Agents use MCP, apps and backend workflows use the versioned REST API, and operators use the CLI to connect mailboxes, manage access, and run the service.

Features

📬 Connect Gmail, Google Workspace, Microsoft 365, Outlook.com, and IMAP/SMTP mailboxes to one instance.
🤖 Give agents MCP tools to list, search, read, draft, reply, forward, send, schedule, and organize email.
🔌 Use the same mailbox operations from the versioned REST API and CLI.
🧵 Fetch complete messages and threads, work across several mailboxes, and download attachments.
🗂️ Mark mail as read, star or archive it, move it between folders, send it to Trash, and manage Gmail labels or Outlook categories.
🔐 Limit each client to selected mailboxes and actions with permission profiles or custom policies.
👥 Add members and share selected mailboxes on Team and Enterprise plans.
🏠 Run Fluxmail locally or in Docker while keeping its database and encrypted provider credentials on your infrastructure.

Get started

Fluxmail requires Node.js 20.20.x, or Node.js 22.22 or later.

npm install -g fluxmail
fluxmail setup --name "Your name" --email you@example.com

Then follow the quickstart to connect a mailbox and choose how you want to use Fluxmail: MCP, REST API, or CLI.

Documentation

Plans and license

The Personal plan supports three mailboxes and one member. Paid plans raise those limits for teams that share an instance. See Fluxmail pricing for current details.

Fluxmail is source available under the Elastic License 2.0. You may use, modify, create derivative works, and redistribute Fluxmail subject to that license. Running a fork does not by itself require a paid Fluxmail subscription, and the built-in Personal plan supports three mailboxes and one member without a paid key.

Official Pro and Team entitlements require a valid Fluxmail license key. ELv2 does not allow you to change or circumvent license key functionality, remove protected functionality, or provide Fluxmail itself as a hosted or managed service that exposes a substantial set of its features. Use of the Fluxmail name and logos is also subject to the Fluxmail Terms of Service.

インストール

Fluxmail をクライアントに追加します。お使いのものを選んでください。

claude mcp add fluxmail -- npx -y fluxmail

codex mcp add fluxmail -- npx -y fluxmail

amp mcp add fluxmail -- npx -y fluxmail

{
  "mcpServers": {
    "fluxmail": {
      "command": "npx",
      "args": [
        "-y",
        "fluxmail"
      ]
    }
  }
}

Add to `claude_desktop_config.json`, then restart Claude Desktop.

{
  "mcpServers": {
    "fluxmail": {
      "command": "npx",
      "args": [
        "-y",
        "fluxmail"
      ]
    }
  }
}

Add to `~/.cursor/mcp.json`, or `.cursor/mcp.json` for a single project.

code --add-mcp '{"name":"fluxmail","command":"npx","args":["-y","fluxmail"]}'

Or add the block manually to `.vscode/mcp.json` under `servers`.

{
  "mcpServers": {
    "fluxmail": {
      "command": "npx",
      "args": [
        "-y",
        "fluxmail"
      ]
    }
  }
}

Add to `~/.codeium/windsurf/mcp_config.json`.

{
  "mcpServers": {
    "fluxmail": {
      "command": "npx",
      "args": [
        "-y",
        "fluxmail"
      ]
    }
  }
}

Add to `cline_mcp_settings.json` via the MCP Servers panel.

{
  "mcpServers": {
    "fluxmail": {
      "command": "npx",
      "args": [
        "-y",
        "fluxmail"
      ]
    }
  }
}

Add to `~/.gemini/settings.json`.

{
  "mcpServers": {
    "fluxmail": {
      "type": "local",
      "command": "npx",
      "args": [
        "-y",
        "fluxmail"
      ],
      "tools": [
        "*"
      ]
    }
  }
}

Add to `~/.copilot/mcp-config.json`, or run `/mcp add` inside the CLI.

{
  "context_servers": {
    "fluxmail": {
      "command": {
        "path": "npx",
        "args": [
          "-y",
          "fluxmail"
        ]
      }
    }
  }
}

Add to your Zed `settings.json`.

npx -y fluxmail

Run `goose configure`, choose **Add Extension → Command-line Extension**, and paste this command.

スコア

39 / 100

情報不足

ドキュメント22/25
メンテナンス22/25
信頼性6/20
機能0/15
導入のしやすさ12/15

Documents what it does and how to connect
Has a resolvable package or endpoint
Exposes at least one tool, prompt or resource
README has substantive content
Includes a code example
Documents its configuration
Mentions credentials or security posture
Last commit 37 days ago
Has a release history
Repository is not archived
No licence detected
Namespace verified in the official MCP registry
Claimed by its owner
Published under an organisation
0 tool(s) documented
Provides prompt templates
Provides resources
12 documented install method(s)
Published to a package registry
Offers a hosted endpoint — no local install

評価基準の全文を読む →

バージョン履歴

バージョン	公開日
0.7.0最新	2026年7月25日
0.6.1	2026年7月23日
0.6.0	2026年7月21日
0.5.0	2026年7月18日
0.4.1	2026年7月17日
0.4.0	2026年7月16日
0.3.0	2026年7月14日
0.2.1	2026年7月13日