dbpath = /data/lanqin.db
query = SELECT 'vhosts/' || substr(address, instr(address, '@') + 1) || '/' || local_part || '/Maildir/' FROM mailboxes WHERE address='%s' AND status='active' UNION SELECT 'vhosts/' || substr('%s', instr('%s', '@') + 1) || '/__unregistered__/Maildir/' WHERE EXISTS (SELECT 1 FROM system_settings WHERE key='catchAllEnabled' AND value='true') AND EXISTS (SELECT 1 FROM domains WHERE name=substr('%s', instr('%s', '@') + 1) AND status='active') AND NOT EXISTS (SELECT 1 FROM mailboxes WHERE address='%s' AND status='active')