https://machinemail.dev/blog Notes from the team building MachineMail: email for AI agents, and the trust layer that keeps the inbox from hijacking them. en Mon, 19 Oct 2026 00:00:00 GMT https://machinemail.dev/blog/one-pixel-font https://machinemail.dev/blog/one-pixel-font Mon, 19 Oct 2026 00:00:00 GMT blog@machinemail.dev (MachineMail Team) trust security An agent asked X for a reset code. The email passed every check, and our trust layer showed the agent an empty message. Here is why, and what we changed.