@unexec if cmp -s %D/etc/postfix/dist-postgrey_whitelist_recipients %D/etc/postfix/postgrey_whitelist_recipients; then rm -f %D/etc/postfix/postgrey_whitelist_recipients; fi
@unexec if cmp -s %D/etc/postfix/dist-postgrey_whitelist_clients %D/etc/postfix/postgrey_whitelist_clients; then rm -f %D/etc/postfix/postgrey_whitelist_clients; fi