Ok found a solution.
This was due to recent changes in Fedora service file. It removed -d (daemonize) option from SPAMDOPTIONS Spamassassin without -d option enables stderr logging. (in addition to syslog logging) This logs were redirected to syslog by systemctl. Adding -d option (i.e. reverting the change) fixes the problem. Amish Original message: From: Amish <ammdispose...@yahoo.com> Hello, I have recently upgraded to SpamAssassin v 3.4.0. (on Fedora 16 64bit) Everything works fine but after upgrade I have started to see double logging. 1) normal logging to /var/log/maillog in proper format 2) same lines repeated in /var/log/messages BUT in weird fashion