Hello to everyone, and thanks for your kind messages!!
I wanted to reassure you that I'm fine and that the problem was linked to an Italian mail service provider that closed all e-mail boxes for several days (almost 10). really a big disservice.
Now the mail is slowly getting back to working (I received a lot of emails from you, dear friends and thank you very much.
Covid has fortunately passed, but I'm starting to get tired of it,
I hug you all,
Claudio