Create maildir from info we store in the other columns

roles/mailserver/tasks/sqlite.yml

@@ -33,7 +33,6 @@
           username VARCHAR(255) NOT NULL PRIMARY KEY,
           password VARCHAR(255) NOT NULL,
           domain VARCHAR(128) NOT NULL,
-          maildir VARCHAR(255) NOT NULL,
           name VARCHAR(255) NOT NULL,
           quota BIGINT(20) NOT NULL DEFAULT 0,
           created DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,

roles/mailserver/templates/etc/postfix/sqlite_virtual_mailbox_maps.cf.j2

@@ -1,2 +1,2 @@
 dbpath = {{ mailserver_auth_database }}
-query = SELECT maildir FROM mailbox WHERE username = '%s' AND active = 'Y'
+query = SELECT domain || "/" || substr(username, 1, instr(username, "@") - 1) || "/" FROM mailbox WHERE username = '%s' AND active = 'Y'