How to fix the spamassassin bug with the FH_DATE_PAST_20XX rule
Since january 1 2010, spamassassin is falsely marking non spam emails as spam due to an error in the regular expression of the FH_DATE_PAST_20XX rule.
Description of the bug:
To fix this, run the following command on the shell as root user:
If you use the software ISPConfig 2 on your server, run this command: