除了带有PHP邮件脚本的经过测试的HTML表单外，还有什么我需要做的才能让简单的联系表单工作吗？

I have 2 websites (currently just using free hosting from bythehost) and I wish to just add a simple contact form to each of them with php processing but I can't seem to get them to work. I have 2 websites (currently just using free ho