I use contact form 7 for a while now. Alyway worked good!
Now I want a form with an upload, and it does work. I see the email coming. But: the customer doesn't see it is send. It keeps going like it is sending right now.
What's the problem? :( It has to be clear for the customer that it is sent. Without the upload it is correct. How do I get it correct with the upload?