Undelivered Mail Returned to Sender

This is a MIME-encapsulated message.

--5DED31A279C.1208714686/teresa.winkowski.pl
Content-Description: Notification
Content-Type: text/plain

This is the Postfix program at host teresa.winkowski.pl.

I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.

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 message returned below.

			The Postfix program

<[email protected]>: host 192.168.5.100[192.168.5.100] said: 550
    <[email protected]>: User unknown in virtual mailbox table (in reply
    to RCPT TO command)

--5DED31A279C.1208714686/teresa.winkowski.pl
Content-Description: Delivery error report
Content-Type: message/delivery-status

Reporting-MTA: dns; teresa.winkowski.pl
Arrival-Date: Sun, 20 Apr 2008 20:03:51 +0200 (CEST)

Final-Recipient: rfc822; [email protected]
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host 192.168.5.100[192.168.5.100] said: 550
    <[email protected]>: User unknown in virtual mailbox table (in reply
    to RCPT TO command)

--5DED31A279C.1208714686/teresa.winkowski.pl
Content-Description: Undelivered Message
Content-Type: message/rfc822

Received: from 87.126.244.234 (87-126-244-234.btc-net.bg [87.126.244.234])
	by teresa.winkowski.pl (Postfix) with ESMTP id 5DED31A279C

--5DED31A279C.1208714686/teresa.winkowski.pl--