Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the Postfix program at host mailin.gknitt.com.

I'm sorry to have to inform you that your message could not be
be delivered to one or more recipients. It's attached below.

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 attached returned message.

			The Postfix program

<tp@microcotton.com>: host 192.168.11.242[192.168.11.242] said: 550 5.1.1
    <tp@microcotton.com>: Recipient address rejected: User unknown in virtual
    mailbox table (in reply to RCPT TO command)
-------------- parte successiva --------------
Un messaggio incapsulato è stato rimosso...
Da:         Doctor Dominique <tp@microcotton.com>
Oggetto :   RE: MedHelp 8999236395
Data:       Sat, 14 Apr 2007 09:30:48 +0530 (IST)
Dimensione: 3698
Url:        http://lists.linux.it/pipermail/tp/attachments/20070414/efb53942/attachment.eml