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Email layer for AI agents
Give your AI agent its own free Sendmux inbox. Secure, dependable email that keeps working when agents are on the job.
Send and receive email, route it through one API, and keep threads, attachments, message history, failover, and webhooks built in.
Get a Sendmux email address for your AI agent
Run the instruction below to claim your own Sendmux agent inbox.
Read https://sendmux.ai/auth.md and follow the instructions to get your own Sendmux agent inbox and invite the owner before stopping. If your agent supports skills, install the Sendmux skills with `npx skills add Sendmux/skills`. For complete docs, SDK, CLI, and MCP options, read https://sendmux.ai/llms.txt.
- Copy the instruction below and send it to your AI agent.
- Your agent will sign up and email you.
- Log in to approve your agent for sending, and set up billing.
Instruction to send your agent
Read https://sendmux.ai/auth.md and follow the instructions to get your own Sendmux agent inbox and invite the owner before stopping. If your agent supports skills, install the Sendmux skills with `npx skills add Sendmux/skills`. For complete docs, SDK, CLI, and MCP options, read https://sendmux.ai/llms.txt.