Since yesterday I use
Spamassassin version 3.0.0.
Upgrade Notes:
- --auto-whitelist -a
auto_learn 1 - rewrite_subject 1
rewrite_header Subject ****SPAM****
Additionally I tried my own
custom rules :
header LOCAL_COLT RECEIVED =~ /.+\.colt\.net\ /
score LOCAL_COLT 0.1
describe LOCAL_COLT Mail send via Colt