Rodrigo Barbosa wrote: >>I'm planning the installation of the school's Mail Server. This is the >>first time I get in administration. I've been reading about postfix, >>cyrus and the first page in the guide of HughesJR.com[2] about >>installing postfix-cyrus, but due my low hardware resources, I ask for >>suggestions to see If what I need can be done (and|or) stable. >> >>Hardware: >>Pentium III 1.4Ghz >>256 RAM >>40 GB HD-IDE >> >>Soft: >>CentOS 4.2 >>Postfix >>Cyrus-IMAPd >>MailScanner >>Spanassassin > > > First off, dump either antivirus or antispam on that machine. You > don't have enough memory to keep both happy. How about using MailScanner ? and wrap that around clamav + spamassassin, you can run it with 2 - 4 threads on a machine with 256megs of ram, and since spamassassin runs via its perl interface locally ( and not via spamd ), it uses up no resources while its not running. MailScanner might slow your inbound mail queue processing by a few seconds, but would allow you to better manage the resources you have on the machine ( and also implement any policy based email rules you might want to have ) > A P3 1.4GHz is more than up to the task, so you will have no problem there. > > You might also want to change Cyrus-imapd to something simpler, like > wu-imapd, since it should take less resources from the machine. Then again, > I have very little experience with cyrus, since I either use wu or courrier. With 2000 users and 80+ concurrent users, you will find Cyrus performs faster with lower system resources than Wu-imap or Dovecot! Also, on a machine with that setup, I'd have a Gig of Swap. And that 40GB hdd, i wonder how fast that runs :) might end up being the bottle neck in the equation. - K