我解决了这个问题，好像有一些问题

I solved the problem, seems like it had some problems with:

[NSURL URLWithString: @"http://textfake.com/test/mail.php"]];

，应该与www一起使用。代替：

and it should be with www. instead:

[NSURL URLWithString: @"http://www.textfake.com/test/mail.php"]];