Greylisting SQL query updated to work with catchall addresses redirecting to local mail users

install/tpl/mysql-virtual_policy_greylist.cf.master

 user = {mysql_server_ispconfig_user}
 password = {mysql_server_ispconfig_password}
 dbname = {mysql_server_database}
-query = SELECT 'greylisting' FROM (SELECT greylisting, source AS email FROM mail_forwarding WHERE server_id = {server_id} UNION SELECT greylisting, email FROM mail_user WHERE server_id = {server_id}) addresses WHERE addresses.email='%s' AND addresses.greylisting='y'
+query = SELECT 'greylisting' FROM (SELECT greylisting, source AS email FROM mail_forwarding WHERE server_id = {server_id} UNION SELECT greylisting, email FROM mail_user WHERE server_id = {server_id}) addresses WHERE addresses.email='%s' AND addresses.greylisting='y' UNION SELECT 'greylisting' FROM `mail_forwarding` f CROSS JOIN `mail_user` u ON u.email = f.destination WHERE f.type = 'catchall' AND u.greylisting = 'y' AND u.server_id = {server_id} AND f.source = '@%s'
 hosts = {mysql_server_ip}
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