CF7 Split/Separate fields [closed]

could be possible with jQuery.
This Idea is to add a Hidden field and set value to it with jquery.

$("#name_field_id").focusout(function(){
     str = $(this).val();
     if(str){
      s = str.split(/(?<=^\S+)\s/); //split string in name field after first space found. 
      $("#hidden_field_id").val(s[1]); //s[1] value after the first space set to hidden field.
     }
  });

then you can use the hidden field in email.