mailer

{
    "mailer": {
        "admin_gui": "http://<ip>:3000/#/events",
        "mail_from": "<email>@gmail.com",
        "mail_to": [
            "<email>@gmail.com",
            "<email2>@gmail.com"
        ],
        "smtp_address": "localhost",
        "smtp_port": "25",
        "smtp_domain": "localhost.localdomain"
    }
}