I created a new email address.

Hello,

In what context (and on which site…) ?

https://www.commentcamarche.net/infos/25855-charte-d-utilisation-de-commentcamarche-net-respect-d-autrui/

 Why?

Well, simply because it is not valid!

(It might also be misspelled…).

There are certain conditions to be met for an email address to be valid!

https://aide.espaceplaisir.fr/hc/fr/articles/13406829645842-J-essaye-de-m-inscrire-pourquoi-mon-adresse-e-mail-est-invalide

https://academy.test.io/fr/articles/6741787-validation-des-adresses-e-mail

Hello (also)

If you really want help, you will need to provide more details so we can understand the problem.

What is the email host?
Has the address been validated? (no accents or special characters)

Or is it a problem with receiving mail? Which one?

What is well understood is clearly stated,
And the words to express it come easily.
(Boileau)