### acl/20_exim4-config_whitelist_local_deny
#################################

# This is used to determine whitelisted senders and hosts.
# It checks for CONFDIR/local_host_whitelist and
# CONFDIR/local_sender_whitelist.
#
# It is meant to be used from some other acl entry.
#
# See exim4-config_files(5) for details.
#
# If the files do not exist, the white list never matches, which is
# the desired behaviour.

acl_whitelist_local_deny:
  accept
    hosts = ${if exists{CONFDIR/local_host_whitelist}\
                 {CONFDIR/local_host_whitelist}\
                 {}}
  accept
    senders = ${if exists{CONFDIR/local_sender_whitelist}\
                   {CONFDIR/local_sender_whitelist}\
                   {}}

  # This hook allows you to hook in your own ACLs without having to
  # modify this file. If you do it like we suggest, you'll end up with
  # a small performance penalty since there is an additional file being
  # accessed. This doesn't happen if you leave the macro unset.
  .ifdef WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE
  .include WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE
  .endif