@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        EmailAddress that = (EmailAddress) o;

        if (id != null ? !id.equals(that.id) : that.id != null) return false;
        if (label != null ? !label.equals(that.label) : that.label != null) return false;

        return true;
    }