Initial commit

etc/postfix/sql/mysql_virtual_auth_maps.cf

@@ -0,0 +1,5 @@
+user = postfix_readonly
+password = YOUR_PASSWORD
+hosts = localhost
+dbname = postfix
+query = SELECT username FROM mailbox WHERE username=CONCAT('%u', '@', COALESCE((SELECT target_domain FROM alias_domain WHERE alias_domain = '%d' AND active='1'), '%d')) AND active = '1'