mailcow/data/conf/rspamd/local.d/multimap.conf

RCPT_MAILCOW_DOMAIN {
  type = "rcpt";
  filter = "email:domain"
  map = "redis://DOMAIN_MAP"
}

RCPT_WANTS_SUBJECT_TAG {
  type = "rcpt";
  filter = "email:addr"
  map = "redis://RCPT_WANTS_SUBJECT_TAG"
}