[Fiware-elearning] Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host omail02.eng-mo.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.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<snobbishbelfry4xp21q at outlook.com>: host mx2.hotmail.com[65.54.188.110] said:
    550 Requested action not taken: mailbox unavailable (in reply to RCPT TO
    command)
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From: "Admin User" <fiware-elearning at lists.fi-ware.org>
Subject: FIWARE Academy: account confirmation
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