Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun MCP server

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

Category: Productivity

● Online (auth required), checked 335 min ago · 121 ms

Source: official MCP Registry entry dev.workers.cybermax-tools.cybermax/send-email

Direct MCP URL and setup

CLAUDE CODE

claude mcp add --transport http dev-workers-cybermax-tools-cybermax-send https://mcp.apify.com/?tools=cybermax/send-email&via=mcp-registry

CURSOR / VS CODE (mcp.json)

{ "mcpServers": { "dev-workers-cybermax-tools-cybermax-send": { "url": "https://mcp.apify.com/?tools=cybermax/send-email&via=mcp-registry" } } }