/gateways

{
  "id": 2, //unique ID
  "leasable": false,
  "label": "Paas gate",
  "provider": "smtp",
  "params": {
        "default_from_address": "[email protected]",
        "mail.smtp.user": null,
        "mail.smtp.password": null,
        "mail.smtp.host": "localhost",
        "mail.smtp.port": 25,
        "mail.smtp.ssl.port": 465,
        "mail.smtp.ssl.trust_all_hosts": false,
        "mail.smtp.auth": true,
        "mail.debug": false,
        "mail.smtp.starttls.enable": false,
        "mail.smtp.starttls.required": false,
        "mail.smtp.use_ssl": false,
        "mail.smtp.timeout": 60000,
        "mail.smtp.connectiontimeout": 60000,
        "mail.transport.protocol": "smtp"
  }
}

 {
     "id": 1,
     "label": "Platform gate",
     "default_from_address": "[email protected]"
 }