Hi! I have a custom Form specified in the documentation for the plugin.

1. How do I intercept the output <div class="confirm-container"></div> in another language?
2. How do I connect Attaching Files?
3. How to add in the Form of a captcha? Thank you!

   <div class="confirm-container">
       <!--This will contain the confirmation when the email is successfully sent-->
   </div>

1. There is a settings page in the backend to set the confirmation text to any langage you want. I am not sure what you mean by intercept. Could you elaborate.
2. Could you clarify this one please.
3. The form has no captcha functionality yet but its something I plan to do soon.

1. How to attach files to the message?

There is no functionality for that yet but a suggestion would be to let user add a link to an externally attached file.

How to implement it?