Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the Postfix program at host mx1.songnet.fi.

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

<linux-ipsec-REQUEST@clinet.fi>: host mail.clinet.fi[194.100.0.7] said: 550
    <linux-ipsec-REQUEST@clinet.fi>: User unknown

Reporting-MTA: dns; mx1.songnet.fi
Arrival-Date: Fri, 27 Jun 2003 18:31:16 +0300 (EEST)

Final-Recipient: rfc822; linux-ipsec-REQUEST@clinet.fi
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host mail.clinet.fi[194.100.0.7] said: 550
    <linux-ipsec-REQUEST@clinet.fi>: User unknown

--- Begin Message --- Subject: Re: Application Date: Fri, 27 Jun 2003 23:34:53 +0800

Please see the attached zip file for details.

"your_details.zip
Description: Binary data

--- End Message ---