There is an issue with the latest Spam Assassin used in 2.2.31 and 2.2.32 that causes systems to panic in some instances and otherwise be rendered useless due to the new CPU/Memory intense structures of Spam Assassin. My system was rendered useless for a few hours before its load settled down again today (just an example). Spam Assassin used 100% of the CPU across three instances for over two hours while I monitored "TOP" output tonight. I am not familiar with ISPCONFIG's configuration of Spam Assassin, nor am I familiar with Spam Assassin. Please, someone with knowledge remedy a solution as people may not realize this is a cause of instability that many probably will be or are having who still are on the 2.x.x branch. Here are some links I found regarding similar issues: http://ubuntuforums.org/showthread.php?t=508942 http://email@example.com/msg11631.html https://www.gnax.net/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=16 CPANEL offers some sort of patch to remedy this problem as of late according to my Googling. Thanks!