Give every agent its own inbox, with a trust report on each message
Grounded in available product and source data
MachineMail hands every AI agent a real inbox it can sign up for, wait on and reply from. Mail arrives as plain text with a trust level attached, and the agent reads it over MCP wherever it happens to be running.
A catch-all domain creates addresses as needed, so a sign-up or an invoice run can get its own box that expires when the job is done. Every inbound message carries a report and one of five levels, from verified through quarantined, and the agent acts on the level rather than on what the sender says.