Hi, many thanks for your answer.
Find out which milter is being used and whether it can be configured to add the headers you need.
the milter I'm using is spamass-milter-0.3.1 from pkgsrc, too. I used it under Debian, and it did not need any further configuration. Regards, Marianne -- "Die einen nennen es 'Zensur', die anderen 'regular expression'."