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mcp/harbor
Grok

mail send for Grok

dev.mailkite/mail-send

Send transactional email over a verified domain — templates, attachments, custom headers.

client:Grok transport:streamable-http

Install mail send in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "mail-send": {
      "type": "http",
      "url": "https://mcp.mailkite.dev/mcp?ref=mail-send"
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

mail send in other clients

mail send MCP server