Thank you for reply
The form
https://prnt.sc/2puNpAtHp8gl
(https://www.lentourage.ch/index.php#contact)
On this screenshot, you will see the field name of the email field.
https://prnt.sc/gNu9Pul99L3T
And on this screenshot, you will see what I want for the From Email field
https://prnt.sc/OX9c3Zr0maZA
With Joomla 3, I could used the field name "e-mail" in the From Email, like {{prenom}} {{nom}} {{e-mail}}.
After the migration to Joomla 4.1.3, if I write {{prenom}} {{nom}} {{e-mail}} in the Form Field, the form doen't send the email. If I write a "real" address, like [email protected], the form send the email.
This week, I migrate 3 sites to Joomla 4.1.3 (build with SP Page Builder Pro), no one accepts the {{...}} write anymore in the From Email.
Best regards.