I have a Courier-IMAP setup and a Postfix MTA with 3404 accounts on a dual IBM Netfinity type 8665-R6Y.
The server is only a dual 700Mhz machine with 7GB of RAM and a 100GB RAID volume for IMAP mail. Yet, 1700 people use it daily. Between 195-240 users are simultaneously connected between regular hours. 1.5-2GB of mail is processed daily. Most users use a webmail client, Squirrelmail, to read mail. The mail system has been up for 1.5 years. I use Rsync to backup the mail daily. It take an hour to sync all the accounts. Courier works great and it was fairly easy to setup. Postfix also works great and never loses a message. But, Postfix is a bit of a resource hog. The only complaint I have is that when mass mailings come in, the Postfix MTA spawns multiple child processes and locks many of the maildirs resulting in file-locking delays. Webmail users will not notice the delays. However, regular mail clients have to wait for the locking delays to pass. I am using the ext3 with default journaling on my 100GB volume. I think the ext3 journaling is causing the occasional locking delays. Ext3 does not seem to very well with Maildir directories ext2 and XFS are probably better suited for the job. On 03/11/03 23:58 -0600, Richard Houston wrote: > Hi all, > > I am looking at putting a courier IMAP server in to production with a > large amount of users, over 1000, in the near future. I have be asked a > fer time as to how many users can the courier system handle. I will be > using postfix and courier-imap. Could I ask a few of you let me know how > big you installs are and how well they perform so I can give the > management some examples. > > Thanks very much, any input is greatly appreciated. > > -- > > > Thanks > > Richard Houston > R.L.H. Consulting > www.rlhc.net > > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SF.net Giveback Program. > Does SourceForge.net help you be more productive? Does it > help you create better code? SHARE THE LOVE, and help us help > YOU! Click Here: http://sourceforge.net/donate/ > _______________________________________________ > courier-users mailing list > [EMAIL PROTECTED] > Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users -- ------------------------------------------------------- *Theodore Knab *Washington College *Systems Engineer *Maryland, USA ------------------------------------------------------- perl -ne'chomp;$a.=pack"h*",$_;END{print"\n$a\n\n"}'<<RM 940216d602160236869636b656e6e2a0 ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
