Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun
dev.workers.cybermax-tools.cybermax/send-email
Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
Install surfaces
How Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun runs, per the official MCP registry entry.
- streamable-http
https://mcp.apify.com/?tools=cybermax/send-email&via=mcp-registry
Governed execution
How KLA gates calls to Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun once it is connected.
A published policy defines which Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun actions an agent may take and under what conditions. Each call passes through a policy gate at the tool-call boundary. Permitted actions execute, with the policy basis recorded. Flagged actions execute and are sampled for scheduled human review. High-stakes actions pause and route to a named reviewer on the Decision Desk. The call, the policy decision, and any approval are sealed as an evidence record.
KLA also governs the agents and model providers you already run. See integrations.