[Fiware-elearning] Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host omail01.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

<innatejuvenile5 at ogremail.net>: host ogremail.net[173.233.70.76] said: 451
    Could not complete sender verify callout (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
Date: Thu, 19 Feb 2015 20:14:33 +0100
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