Per policy_bank whitelist_sender configuration

[Tod A. Sandman]

Version: amavisd-new-2.7.0

I have a policy bank for authenticated mail and use the default policy bank for 
non-authenticated mail.

In my amavisd.conf file, I currently read a list of whitelisted senders from a 
file as follows:

  @whitelist_sender_maps = ();
  (push @whitelist_sender_maps, read_hash ("$MYETC/whitelist_sender"))
    if (-f "$MYETC/whitelist_sender");


This has always worked fine.  Now I want to use a separate whitelist file for 
my Auth policy_bank.  I figure for convenience I can make use of 
"@whitelist_sender_acl", which I currently do no use, and add one line to my 
policy_bank to reference it, such as


    $interface_policy{'10026'} = 'AUTH';
    $policy_bank{'AUTH'} = {
      forward_method => 'smtp:[127.0.0.1]:10027',
      notify_method  => $forward_method,
      X_HEADER_LINE  => $X_HEADER_LINE . ", auth channel",
  +   whitelist_sender_maps => [ (\@whitelist_sender_acl) ],
    };

  + @whitelist_sender_acl = ();
  + (push @whitelist_sender_acl, read_array ("$MYETC/whitelist_sender_auth"))
  +   if (-f "$MYETC/whitelist_sender_auth");


I see no error messages, but I can't seem to get the contents of the file to 
take effect.  Does anyone see what I'm doing wrong?

Thanks - Tod Sandman