Another Nesting Question :)

Am I doing this correctly? I'm not entirely sure how to multiple-nest...

Mark

# Kansas City
{
:0
# Match on To/Cc Address
* ^(To:|Cc:).*(abuse|security|fraud|spam)@kc\.rr\.com

{
        # Check for presence of Black Ice signatures, if yes,
        # then call blackice.rc autoresponder, nuke mail, and
        # stop processing
        :0B
        * ("attack-list.csv"|".enc"|"mac address:")
        INCLUDERC=blackice.rc
        /dev/null
}
{
        # If no Black Ice signatures, then do regular process
        INCLUDERC=ackmail.rc
        :0c:
        ce-kc
        :0:
        $BACKUP/ce-kc
}
}

   W. Mark Herrick, Jr. <markh(_at_)va(_dot_)rr(_dot_)com>          _.._        
_.._
       Senior Security Administrator             ,','"_:./\/\,'_ `.`.
       Team Lead - Usenet Operations            /_:--:_ ( oo ) _:--:_\
    Road Runner Security - 703.345.2477        /'      `'`vv'`'      `\
<abuse(_at_)rr(_dot_)com><security(_at_)rr(_dot_)com><fraud(_at_)rr(_dot_)com>