@girish Thank you for your advice. It wasn't easy but I finally got there ! Already I had not understood right away that it was the "email" section of the Wordpress app ! Despite this, it is impossible to make an address work on Fluent SMTP. So I created a new address "noreply@domain.fr" on Cloudron and I first configured it in the e-mail section of the Wordpress app as if I was going to use the Wordpress-mailer-SMTP normally and by applying the TLS protocol to it. After a first test I configured Fluent SMTP in the same way then, back in the e-mail section of the Wordpress app where I selected "do not configure the settings of the app to send mail" and then disabled the WP-mailer-SMTP plugin. And everything works fine !
J
Joce92
@Joce92