On Fri, 2006-24-03 at 17:14 -0600, Bob Pierce wrote: > Does anybody have any advice or opinions about which of these two > packages would be better for a large installation. I'd prefer if the > package could tie into MySQL for user authentication, and all mailboxes > will be virtual in the sense that they won't have local system accounts. I've read on numerous occasions that Cyrus-Imapd will scale better than Dovecot. I have have not, however, read any hard numbers comparing performance between the two. Yeah, that was useless. :) I love Dovecot because it's incredibly easy to setup and maintain. I personally haven't had to roll it out to large sites yet, so I've stuck with it. Also, it's been handling email boxes with several hundred megabytes of email with ease. A lot of that great performance is coming from the Maildir setup I use, I'm sure. Anyway, either one of them might work for you. It really depends on how the system would be used, the type of hardware it's going to be installed on, etc. I suggest you try out both - for 10,000 users, you'll HAVE to do a lot of testing anyway. Regards, Ranbir -- Kanwar Ranbir Sandhu Linux 2.6.15-1.1833_FC4 i686 GNU/Linux 18:22:07 up 3 days, 11:51, 3 users, load average: 0.38, 0.42, 0.43