Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the Postfix program at host mailgw2.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.C User Rejected
    Message (#5.1.1)

Reporting-MTA: dns; mailgw2.technion.ac.il
Arrival-Date: Thu,  5 Jun 2003 23:25:37 +0300 (IDT)

Final-Recipient: rfc822; rl@math.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: Submited (004756-3463) Date: Thu, 5 Jun 2003 23:25:50 +0300

Please see the attached file.

"45443.pif
Description: Binary data

--- End Message ---