Mail delivery error : Virus found

[postmaster at situpweb.com]

SITUP Web Design Antivirus Scanner Report.
------------------------------------------

A message sent from you was detected to contain a virus.

Sender:       feedback at pld-linux.org
Recipient:    milanoshop at zanotta.com

The Mail has not been delivered.

Please check your system and resend the message.

If you need help please contact hotline at situpweb.com.

Thank you.

SITUP Web Design           http://www.situpweb.com

----- End of Virus Scanner Report -----
/var/MailRoot/spool/10/22/mess/1091122173989.3880615965.4a720.webmail2.scan/information_milanoshop.zip
        Found the W32/Netsky.n at MM!zip virus !!!