By the way, you can download ready to use open-source mail, calendar, contacts, etc: http://www.6zap.com. I'am sysadm in this project and we use dovecot to.
On Wed, 05/06/2009 at 5:28pm, "Brandon Lamb" <brandonl...@gmail.com> wrote: > On Wed, May 6, 2009 at 7:23 AM, Brandon Lamb <brandonl...@gmail.com> wrote: >> On Wed, May 6, 2009 at 5:25 AM, Kenneth Kalmer <kenneth.kal...@gmail.com> >> wrote: >>> On Tue, May 5, 2009 at 11:39 PM, Timo Sirainen <t...@iki.fi> wrote: >>> >>>> On Tue, 2009-05-05 at 23:32 +0200, Kenneth Kalmer wrote: >>>>>>> * NFS server which is the same server that houses single Courier-IMAP >>>>>>> installation (Gentoo, 3GB memory) >>>>>>> * 2x Postfix instances delivering to NFS >>>>>>> >>>>>> >>>>>> NFS may be problematic. Dovecot expects a perfectly working NFS setup, >>>>>> which seems to be a bit rare to find. http://wiki.dovecot.org/NFS >>>>>> >>>>> >>>>> Just for the record, dovecot will be access the mail directly on the >>>> disks, >>>>> it will be the LDA's on the postfix instances coming in over NFS. I'm >>>>> reading the NFS again to make sure I understand the risks >>>> >>>> If the LDA is Dovecot deliver, it's the same problem since it also >>>> updates index/control files that cause the problems. But if you're using >>>> something else that does nothing but write the maildir files, then it's >>>> fine. >>>> >>> >>> I'm looking to use the Dovecot LDA so the caches are updated and the >>> filenames are correct, to get good POP3 performance. >>> >>> I'm looking forward to giving Dovecot a go, but I'll rig up a staging >>> environment first. >>> >>> Thanks for the encouraging responses everyone. >>> >>> Best >>> >>> -- >>> Kenneth Kalmer >>> kenneth.kal...@gmail.com >>> http://opensourcery.co.za >>> @kennethkalmer >> >> I moved from a 4 gig nfs server with eight mailheads running exim as >> lda, courier imap/pop3 (over nfs) to an 8 gig nfs server and moved to >> dovecot imap/pop3 running directly on the nfs server and dropped to >> four mailheads running exim with dovecot lda. >> >> At first I tried to keep my imap/pop3 services running on the 4 >> mailheads but over nfs had major weird 500 load spikes randomly, >> moving these to the nfs server solved all of that. The 4 mailheads >> still deliver to maildir over nfs using dovecot as lda. I have been >> pleasantly pleased. Our webmail app in our old setup used to take >> 10-30 seconds to load and now it is instantaneous. Some of it might be >> from upgrading hardware, but I definitely had a HUGE noticeable >> difference and you couldnt convince me to go back. >> >> We did have about a week of sucktastic traffic and my support >> department hating me because all our pop3 leave-messages-on-server >> users had to redownload all their mail, but it was worth the headache. >> Dovecot is just too sweet, with its performance and plugins to ever >> have to even think about a choice between it or software X. >> >> Just my $0.02 > > Oh yea, and I just recently discovered the virtual mailbox plugin and > fell even more in love. I am developing a Gmail clone inhouse for our > new webmail (we're an ISP). It is cool plugins like this that make me > glad I switched to Dovecot. Being able to consolidate various Deleted, > Trash, Deleted Items, Deleted Mails folders all into a single > virtual/Trash folder is GREAT. Powered by the 6zap. Sign up at http://www.6zap.com for an account that provides advanced e-mail, calendar and contacts capabilities.
