[exim] spamassassin transport configuration

i get configuration from
http://www.exim.org/exim-html-4.40/doc/html/C047.txt

spamcheck:
    driver = pipe
    command =  /usr/exim/bin/exim -oMr spam-scanned
-bS
    use_bsmtp = true
    transport_filter = /usr/bin/spamc
    home_directory = "/tmp"
    current_directory = "/tmp"
    # must use a privileged user to set
$received_protocol on the way
    # back in!
    user = mail
    group = mail
    log_output = true
    return_fail_output = true
    return_path_add = false
    message_prefix =
    message_suffix =

my question is on command part:
command = /usr/exim/bin/exim -oMr spam-scanned -bS

as i know this command is telling that the email is
already scanned and pass the scan as clean message.

but how to tell exim that the email is already scanned
and didn't pass the test? so exim can create a error
message notification to the email sender.

can i do something like:
command = /usr/exim/bin/exim -oMr spam-scanned no -bS

see the "no" part. so exim knows that the email didn't
pass the spamassassin test

thanks

Best Regards,
Markus


        
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