dev.workers.cybermax-tools.cybermax/send-email · v1.0.1
Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
An MCP (Model Context Protocol) server exposes tools, data, and actions to AI agents like Claude, Cursor, and Cline through a standard protocol — the connectors and plugins of the agent ecosystem. Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun is distributed as a hosted remote endpoint, and is listed in the official Model Context Protocol registry.
MCP servers set their own license, and the registry does not publish it — so whether this server is free for commercial use depends on the license in its source repository. No source repository is listed; contact the publisher for licensing terms before commercial use. Running third-party MCP servers also grants them tool access to your agent — review their permissions and provenance (exactly what Safeguard's MCP governance is built for).