mailcow-dockerized/data/conf/dovecot/sql/dovecot-dict-sql.conf

connect = "host=mysql dbname=mailcow user=mailcow password=mysafepasswd"

map {
  pattern = priv/quota/storage
  table = quota2
  username_field = username
  value_field = bytes
}
map {
  pattern = priv/quota/messages
  table = quota2
  username_field = username
  value_field = messages
}