[Plugin: Contact Form 7] Seems like it doesn't send but it does

How did you set up the Mail section in the plugin’s admin page in detail? How do you inform the customer if the mail is sent?

This is how it is https://www.perfectportret.nl/wp-content/uploads/Schermafbeelding-2012-07-31-om-06.18.44.png
And the customer gets the e-mail, that it is send.

But at the same time the form is still running
https://www.perfectportret.nl/wp-content/uploads/Schermafbeelding-2012-07-31-om-06.21.55.png

And it keeps running! You want to see the message on the website that it it send correctly

OK. This FAQ would be helpful for you.

The spinning arrow icon shows up once I submit a form, but then nothing happens.

Thanks! I Will try later, not possible in the train ??
But still wondering, why only when I use the upload/file-part? All the other forms (for example https://www.perfectportret.nl/contact) do work correctly.

I can’t miss the other plugins so than I would have to search for another plugin with an upload for this temporary page.

I have another plugin right now.