Mit jelent ez az üzenet?

The original message was received at Tue, 10 Feb 2015 09:57:45 GMT

from iwiw02d.mail.t-online.hu [84.2.42.67]

----- The following addresses had permanent fatal errors -----

<luk.savaria@schaeffler.com>

(reason: 550 5.0.0 <luk.savaria@schaeffler.com>... user unknown)

----- Transcript of session follows -----

... while talking to mail-ecs.schaeffler.com.:

>>> DATA

<<< 550 5.0.0 <luk.savaria@schaeffler.com>... user unknown

550 5.1.1 <luk.savaria@schaeffler.com>... User unknown

<<< 503 5.0.0 Need RCPT (recipient)