ionUtil.isEmpty(email))
            return false;
        
        if (StringUtil.contains(email, ' ') > 0)
            return false;
        
        if (StringUtil.contains(email, '@') != 1)
            return false;
        
        var atSign:Number  = email.indexOf('@');
        var lastDot:Number = email.lastIndexOf('.');
        
        if ((lastDot &lt; atSign + 2) || (lastDot > email.length - 3))
            return false;
        
        return true;
    }
    
    /**
        Determines if numbe