Mail Security Tools
Free DMARC, SPF, DKIM and MX checks, a 1-cent email security score and a $1 DNS fix plan.
Install
Run one of the commands below, then add the client config underneath.
Streamable HTTPhttps://api.mailsecuritytools.com/mcp
Client configuration
Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.
mcpServers{
"mcpServers": {
"email-security": {
"url": "https://api.mailsecuritytools.com/mcp"
}
}
}
About this server
Mail Security Tools is listed in the Communication category of the MCPNav directory. It is distributed as Streamable HTTP and can be loaded by any client that speaks the Model Context Protocol.
Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.
Frequently asked questions
What is the Mail Security Tools MCP server?
Mail Security Tools is an MCP server by mailsecuritytools. Free DMARC, SPF, DKIM and MX checks, a 1-cent email security score and a $1 DNS fix plan.
How do I install Mail Security Tools?
Install it with: https://api.mailsecuritytools.com/mcp. Then add the JSON config to your client's MCP settings and restart the client.
Is Mail Security Tools free to use?
The MCP server itself is free to install. Any third-party API it calls (such as a search or maps API) may require its own key and billing.
Which clients support Mail Security Tools?
Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.
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