Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the Postfix program at host mailgw3.technion.ac.il.

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

<address@hidden>: user unknown. Command output: Attention, you
    sent a Virus! It has been blocked, please use a Virus Scanner on your
    computer. The Virus sent is listed below. Virus Name: Worm.Sobig.E User
    Rejected Message (#5.1.1)

Reporting-MTA: dns; mailgw3.technion.ac.il
Arrival-Date: Fri,  4 Jul 2003 17:29:53 +0300 (IDT)

Final-Recipient: rfc822; sdana35@techst02.technion.ac.il
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix;
        user unknown. Command output: Attention, you sent acomputer.Rejected
        Message (#5.1.1)

--- Begin Message --- Subject: Re: Application Date: Fri, 4 Jul 2003 17:29:48 +0200

Please see the attached zip file for details.

"your_details.zip
Description: Zip compressed data

--- End Message ---