2 weeks ago i replaced my ispconfig server. So i installed an new server folowing: http://www.howtoforge.com/perfect-server-ubuntu8.04-lts And after that i backuped and restored the ispconfig database. After that i had to modify some custom files and all is ok. But now i have a problem with reading email from squirrelmail. All reading is ok but when i open mij inbox (4000 messages) IMAPD hits 100& cpu. So i started to trace the pid op imapd strace -p 17222 And it seems that courier reads al files in the cur directory every time i open the inbox in squirrel. I didn`t see this issue using my old server. What is wrong with courier ?