alerts to postmaster but sender why

[Csanády Miklós piarista]

Hi,
I must have misconfigured something, because the sender of
the infected mail does not get a warning when his mail
triggers the scanner.

Where should I look for  the mistake.
Here is  a section from my conf file.

The postmaster gets the warning.
---------------------
# Deliver messages with viruses removed to their original
recipients
# or just delete them?
Deliver To Recipients = yes

# Notify the senders of infected messages that they should
check out
# their systems?
Notify Senders = yes

# Set where to find the message text sent to the senders of
infected
# messages.
Sender Report = /usr/local/MailScanner/etc/sender.report.txt
Sender Virus Report             =
/usr/local/MailScanner/sender.virus.report.txt
Sender Bad Filename Report      =
/usr/local/MailScanner/etc/sender.filename.report.txt
Sender Error Report             =
/usr/local/MailScanner/etc/sender.error.report.txt

# Notify the local postmaster when any infections are found?
Notify Local Postmaster = yes

# Set email address of who to notify about any infections
found.
# Should put your full domain name here too,
#    e.g. postmaster at your.domain.com
Local Postmaster = csm at gimn-db.piar.hu

# Set what to do with infected attachments or messages.
# keep   ==> Store under the "Quarantine Dir"
# delete ==> Just delete them
#Action = delete
Action = keep
-----------------
Any ideas?
Thanks
Miklos