I’m sorry but that is not the case. If you take the time to look at this page: http://www.myopiaprofile.com/download/chinese-version/ you will see that the email is sent, indicating that there is nothing wrong with wp_mail , but if you look at this page http://www.myopiaprofile.com/download/english-version/ you will see that the email doesn’t work.
We are unable to debug a problem with your software, so please just fix it. Just to be clear your standard email form sends an email the Form Lock add in doesn’t – so the problem CANNOT be with wp_mail.
So the problem is with your Form Lock add in. Please fix the problem that exists with your plug in. I am getting so fed up with your failure to fix this problem, please supply the support for the product that I have purchased from you in good faith. If this continues I am going to start giving bad reviews wherever I can to prevent others having to suffer your product.