Virus on Email Server itself?

[Domingo Genaro P. Tamayo]

Good Day
Im just wondering why do our MAILER-DEAMON sends a virus infected email.
Here's a sample email sent by Mailscanner. Is it possible that anti-virus
engine doesn't clean that infected email?
**START OF EMAIL******
Subject: Warning: E-mail viruses detected   View Full Header
View Printable Version
From: "STII Mail Scanner" <postmaster at stii.dost.gov.ph>
Date: Sat, September 14, 2002 5:36 pm
To: <MAILER-DAEMON at stii.dost.gov.ph>
Priority:  Normal

Our virus detector has just been triggered by a message you sent:-
  To: <mar at stii.dost.gov.ph>
  Subject: Undelivered Mail Returned to Sender -New Text Document
  Date: Sat Sep 14 17:36:13 2002
Any infected parts of the message have not been delivered.

This message is simply to warn you that your computer system may have a
virus present and should be checked.

The virus detector said this about the message:
Report: >>> Virus 'W32/Yaha-E' found in file ./g8E9YlCZ019838/New Text
Document.jpg.pifShortcuts to MS-Dos programs are very dangerous in email (New Text
Document.jpg.pif)

-------------------------------------
STII E-mail Virus Protection Service
postmaster at stii.dost.gov.ph

**END OF EMAIL******

Thanks and more power to Mailscanner.

Domingo Genaro P. Tamayo
SRS-I
(STII-DOST PH)