3) I added the following lines to local.cf :
rewrite_subject 1 subject_tag *****SPAM***** use_terse_report 0 auto_learn 1
Now, if I run spamassassin -D --lint I find the statements :
config: SpamAssassin failed to parse line, skipping: rewrite_subject
<snip>
What does it mean ?
It means all of those options are invalid.
rewrite_subject and subject_tag have been replaced by rewrite_header as of 3.0
auto_learn has been replaced by bayes_auto_learn long ago, although the 2.6 series would still handle the typo for you.
use_terse_report has been deprecated for a long time, and 2.6 would silently ignore the option as it was meaningless. The combination of report_safe and the report template commands in recent versions of SA are substantially more flexible anyway.
