[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

<kristinawheelermfl at yahoo.com>: host mta5.am0.yahoodns.net[66.196.118.35] said:
    554 delivery error: dd This user doesn't have a yahoo.com account
    (kristinawheelermfl at yahoo.com) [0] - mta1360.mail.bf1.yahoo.com (in reply
    to end of DATA command)
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