sub CI_Exists
{
    my $chk = shift;

    my @nodes = map $rules->{CI}->{$_},
                grep { $_ eq $chk } keys %{ $rules->{CI} };
    foreach my $n (@nodes) {
        print "Chk = $chk\n";
        foreach my $rec (keys %{ $n->{recipient} }) {
           foreach my $alert (@{$n->{recipient}->{$rec}->{alert}}) {
               ## or whatever suits
               alert_recipient(@$alert{qw/method dest/}, $rec)
           }
         }
         return 1;
    }
    return 0;
}
[download]

Now just fill in sub alert_recipient or whatever works for you and it should do as you wish.
HTH

_________
broquaint

update (broquaint): code now does the intended thing
update 2 (broquaint): fixed keys %$rules->{CI} (that'll teach me for posting untested code)

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