Date: Thu, 15 Nov 2012 12:57:54 -0500
From: Mail Delivery Subsystem <MAILER-DAEMON>
To: root@kitty.Belkin
Subject: Returned mail: see transcript for details

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The original message was received at Thu, 15 Nov 2012 12:57:47 -0500
from localhost [127.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<keithclark1966@gmail.com>
    (reason: 550-Please turn on SMTP Authentication in your mail client, or login to the)

   ----- Transcript of session follows -----
... while talking to s1.infinitysrv.com.:
>>> AUTH dialogue
<<< 535 Incorrect authentication data
>>> AUTH dialogue
<<< 535 Incorrect authentication data