Most AI agents can send emails, but there is no way to receive emails from real humans and reply back.

That's where RegalMail comes in. It allows AI agents to connect with IMAP/SMTP email boxes. It supports IMAP IDLE, meaning emails are pushed, rather than polled. It also supports sending replies with the correct threading.

Billing: RegalMail offers a free plan with 200 emails/month, a Pro plan at $15/month (10,000 emails, 5 mailboxes), and a Business plan at $49/month (50,000 emails, 25 mailboxes).

RegalMail can be used as a plugin with OpenClaw or as a standalone tool via npm (npm install regalmail). It's licensed under the permissive MIT license.

Feedback: If you've tried integrating email with AI agent workflows, you know the pain. If you have, please give RegalMail a try and let me know your thoughts.