This is the mail system at host mailreload.welcomeitalia.it.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

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If you do so, please include this problem report. You can
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                   The mail system

<aes-gVwK9ytf9nIvYLQSLgITXQvlvMVwaad6@public.gmane.org>: Host or domain name not found. Name service error
    for name=galimberti-italia.it type=AAAA: Host not found

<aes-pWzpWQHZaPxIP/+X4XbadA@public.gmane.org>: host smtp-in.eutelia.it[62.94.10.135] said: 558 Relaying
    denied:  domain not valid. (in reply to RCPT TO command)

<aes-wyBf2O1yTJc@public.gmane.org>: host ger.it[69.175.59.138] said: 550 No Such User Here (in reply
    to RCPT TO command)