email59

Send transactional email from AI agents: sign up by email code, no domain or DNS setup. email59's MCP server lets an agent send email on its own. It signs up by asking for a 6-digit code at an address it can read, then uses the session key for everything else. Mail goes out from a name you choose at email59.com, so there's no domain to verify before the first send. Tools: `auth` (sign up / sign in by email code), `send_email` (one recipient: codes, receipts, alerts), `send_campaign` (marketing