[Reportbug-maint] Returned mail: see transcript for details

Mon Mar 20 18:46:06 UTC 2017

The original message was received at Mon, 20 Mar 2017 19:43:57 +0100
from [191.97.53.252]

   ----- The following addresses had permanent fatal errors -----
<a.sabatinidd at leonet.it>
    (reason: 550 5.1.1 <a.sabatinidd at leonet.it>... User unknown)

   ----- Transcript of session follows -----
... while talking to mail.interna.:
>>> DATA
<<< 550 5.1.1 <a.sabatinidd at leonet.it>... User unknown
550 5.1.1 <a.sabatinidd at leonet.it>... User unknown
<<< 503 5.0.0 Need RCPT (recipient)
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