Le 08/02/2006 à 16:01:44-0500, Jay Lee a écrit
>
> On Wed, February 8, 2006 3:54 pm, Albert Shih wrote:
> > Someone tell me the Cyrus imap is better than Courier-imap (Please don't
> > troll) because (this is what I understand but I never use it) it's easy to
> > split physicaly the smtp (with anti-virus/anti-spam/etc...) server and
> > the imap server. And between the smtp server and the imap server we can
> > use LSMTP (L for Ligth) protocol. The difference between LSMTP and SMTP is
> > the first is very light and more faster than SMTP.
>
> Yes, Cyrus has a rep for scaling well in large installations although
> it also has a reputation for being hard to configure. Courier also
> scales very well though and can easily be spread across numerous
> boxes with one handling SMTP and one handling IMAP, you can even do
> multiple boxes per service. The best way to acheive this is probably
> via a NFS share common to the SMTP and IMAP servers. The SMTP server
> will write new mail to the Maildirs stored on the NFS Server and the
> IMAP server will read/write the mail as users access it. Maildir,
> Courier's backend storage method is quite capable over NFS and is
> designed to prevent corruption.
Well in fact I'm stupid because the first question I need to ask is :
What's big server?
Actually I've many problem because I'm using mbox (historical reason), and
I need to change this to Maildir. In the same time I have more users. But
for me more users is
~ 1000 users
but what's large in my administration is the size of Mailbox and the # of
mail. If I want to ««sale»» my solution to the boss I think I need to
present a solution to can handle 1Go mail for every one of users. And 50 %
of my users chekc the mail every 1-2 minutes 24/24 7/7.
In your opinion and experience can I use just one server for this ?
I've make some test (before I'm asking this mailing list) I've create a
mailbox with ~ 30 000 messages (I've one case in my users...). With
Courier-imap & Thunderbird (under FreeBSD 5.4-Stable with 1Go ram and Xeon 2.4
Ghz)
I can't event delete those messages. I can understand this is extreme test.
But I've some extremes users ;-)
Regards.
--
Albert SHIH
Universite de Paris 7 (Denis DIDEROT)
U.F.R. de Mathematiques.
7 ième étage, plateau D, bureau 10
Heure local/Local time:
Wed Feb 8 22:24:27 CET 2006
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