@Clementine_Hugon We’ve double-checked your widget and found that you’ve added mail tags ([nom-prénom] | Tél : [numéro-de-téléphone] | [email]) to the Sender field, which prevented the submissions from being delivered.
We’ve moved these tags to the Message field and now everything is working fine:
Could you please check your widget and let me know how it works?
As for the mail tags in the Sender field, we already have such a request in the Wishlist, and you can keep an eye on it in this thread - Sender Name to replace field [field-id] values