· 18 min read
The Resend alternative for AI agents
Resend has first-class sending DX and, since November 2025, real inbound email. But its inbound webhook is metadata only: an agent fetches the body with a second API call and derives SPF/DKIM trust itself. MailKite (which we build) pushes the parsed body and an auth verdict in one event, so an agent's receive→reply loop is a single round trip. For developers giving an autonomous agent its own inbox.