Am So, den 05.12.2004 schrieb Chris Mason um 15:13: > I'm looking for feedback on experiences of implementing an enterprise mail > server with IMAP and webmail, preferably groupware, on our Dual Xeon Fedora > server. We currently have sendmail, uw-imap, squirrelmail, in standard > Redhat configuration, and we are having huge load problems as the present > setup is not capable of supporting the needs of our users. Large mail > folders bring the server to it's knees. We only have 25 users but they > travel and use the mail system as a filing system, routinely saving 10MB > emails and never cleaning up old mail. uw-imapd is known to be dog slow when it comes to large mboxes. There are too many reports about it causing much CPU occupation when processing (high loads then). I encourage you to migrate to a Cyrus-IMAPd (coming with FC2 and FC3) - runs impressively fast even on my very old and weak AMD K6-3 450 MHz, handling 1,5 GB mail -, keeping Sendmail. I can not say how well SquirrelMail as a webmailer is performing. What I highly recommend is to use an IMAP proxy between the Cyrus-IMAPd and SquirrelMail. That can improve webmail speed a lot. As SquirrelMail is PHP written I recommend using the Turck MMCache which improves the speed of PHP applications a lot. Maybe try as an alternate to SquirrelMail the Horde framework (www.horde.org). It runs very well for me and there are very large mail environments were it proofed it's power. > We also need more groupware type features such as file sharing, messaging > and calendaring. I am looking at Binari, Groupwise, Surgemail, and > opengroupware which would involve more work to implement for me. OpenGroupware is IMHO the only free application in your list. If costs play a role and you are able to implement and customize it to your need, then it is certainly the tool of choice. > Chris Mason Alexander -- Alexander Dalloz | Enger, Germany | new address - new key: 0xB366A773 legal statement: http://www.uni-x.org/legal.html Fedora GNU/Linux Core 2 (Tettnang) on Athlon kernel 2.6.9-1.6_FC2smp Serendipity 17:56:54 up 1 day, 7:15, load average: 0.17, 0.20, 0.19
Attachment:
signature.asc
Description: Dies ist ein digital signierter Nachrichtenteil
