Returned mail: see transcript for details

[Mail Delivery Subsystem <MAILER-DAEMON@xxxxxxxxxxxxxxxxxxxxxxx>]

The original message was received at Fri, 19 Oct 2007 21:56:31 -0300
from 89.242.leased.lanck.net [62.152.89.242]

   ----- The following addresses had permanent fatal errors -----
<ulio@xxxxxxxxxxx>
    (reason: 550-Callout verification failed:)

   ----- Transcript of session follows -----
... while talking to [9.0.0.106]:
>>> DATA
<<< 550-Callout verification failed:
<<< 550 550 5.1.1 <ulio@xxxxxxxxxxx>... User unknown
550 5.1.1 <ulio@xxxxxxxxxxx>... User unknown
<<< 503 valid RCPT command must precede DATA

Reporting-MTA: dns; pifpaf.netsolbox.com.br
Received-From-MTA: DNS; 89.242.leased.lanck.net
Arrival-Date: Fri, 19 Oct 2007 21:56:31 -0300

Final-Recipient: RFC822; ulio@tial.com.br
Action: failed
Status: 5.1.1
Remote-MTA: DNS; [9.0.0.106]
Diagnostic-Code: SMTP; 550-Callout verification failed:
Last-Attempt-Date: Fri, 19 Oct 2007 21:56:33 -0300

--- Begin Message ---

To:	<ulio@xxxxxxxxxxx>
Subject:	October 75% OFF
From:	VIAGRA ® Official Site <ulio@xxxxxxxxxxx>
Date:	Fri, 19 Oct 2007 21:56:29 -0300

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--- End Message ---