Most email APIs are built around one direction: your app sends a transactional email and a human reads it somewhere else.
That breaks down when the user is an AI agent.
Agents often need the full loop:
send email
receive replies
I built email infrastructure for AI agents: send, receive, parse, and reply over MCP
Most email APIs are built around one direction: your app sends a transactional email and a human...
TL;DRAI
Drin: full-loop email infrastructure for AI agents (send, receive, parse, reply, thread management, MCP). $3/month production. Support tools and AI workflows need bidirectional email with approval gates; one-way APIs (Resend, SendGrid) fail.
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