Restructuring setup --------------------------------- Hardware: Pentium III 1.4Ghz 256 RAM 40 GB HD-IDE Soft: CentOS 4.2 Postfix Cyrus-IMAPd Partitioning(in MB): / 8.000 /boot/ 100 swap 512 /home/ 15.888 /tmp/ 500 /var/spool/imap/ 15.000 would be this a candidate setup? I'm planning use quota (as suggested in this list) on cyrus level, giving the students the possibility of free their inbox when it is over quota, and let the messages that are in queue (recently) get into the inbox when the space is freed. In the future, think the possibility of use postgresql (and some php application) to manage users accounts. Like the beginning, it'll be appreciated any suggestion about.