Sendmux

Sendmux is an email API that gives every AI agent a real inbox. Send and receive, route outbound through your own providers, and fail over automatically

SOURCE-LISTED CAPABILITIES

What Sendmux offers

  1. 01The Email API for AI Agents
  2. 02Email tools weren't built for AI agents
  3. 03No complete stack
  4. 04Not built for agents
  5. 05Zero provider flexibility
BEST FOR

Who should consider it

  • People working on “Automate a workflow”
BEFORE YOU CHOOSE

What to verify

  • Try one real task and compare its output with your requirements.
  • Check what data the service stores, shares, or uses for training.
  • Confirm current pricing, usage limits, and cancellation terms on the official site.
Website checked

Official link checked on Aug 28, 2026. Feature claims have not been independently tested.

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