When Cloudflare launched Email for Agents in public beta on April 16, the top Hacker News comment read: "The $6MM investment on Agent Mail is in serious trouble." That's a plausible read of the L1 dynamics. Cloudflare just shipped native SPF, DKIM, and DMARC configuration. An onEmail hook in the Agents SDK. Durable Objects for cross-session state persistence. TypeScript, Python, and Go SDKs. A fre