{
	"smtp": {
		"host": "smtp.example.com",
		"port": 587,
		"secure": false,
		"auth": { "user": "relay@example.com", "pass": "<password>" },
		"from": "agent@example.com"
	},
	"users": {
		"<username>": { "secret": "<hex secret>", "canApprove": [] },
		"<username>": { "secret": "<hex secret>", "canApprove": ["<username>"] }
	}
}