rainbox.email/config/production.json5

{
    log_level: "DEBUG",
    db_log_level: "ERROR",
    public_url: "https://rainbox.email",
    public_websocket_url: "wss://rainbox.email",
    session: {
        cookie: {
            secure: true
        }
    },
    mail: {
        secure: true,
        allow_invalid_tls: false
    },
    approval_mode: true,
    magic_link: {
        validity_period: 900,
    }
}