I recently saw this article on LWN http://www.lwn.net/2001/0222/kernel.php3
Where it shows the problems with large ext2 directories and a possible future solution. I was in the process of switch to maildirs and use several servers with NFS instead, but this puts it all on the head. I dont know if any current linux fs can show good performance with large directories and also export this over NFS. ReiserFS seems good but lacks in NFS if you dont apply some serious patches to the system, and I am reluctant to do that in a production system. Basically Sendmail seems to do okay, it's the pop3 server that shows problems. Regards Roger Abgrahamsson ------------------------------------------------- Roger Abrahamsson, Sys/Net Admin, Obbit AB Radhusespl.17D, S-90328 Umea, Sweden -------------------------------------------------