Thanks for your reply.
As discussed, we use Horde
Webmail and read the documentation that supports server-side sorting,
in any event at the Courier-Imap is the way to confirm this?
It may be because the server only has 1GB of RAM and is configured
Qmail + Vpopmail + Simscan + Spamassassin + ClamAV with over 4500 email
accounts?
We also have 300GB hard drive in RAID1 - EXT3
Please I need your help to solve this problem.
Thanks
jolumape
> From: [email protected]
> To: [email protected]
> Date: Wed, 3 Jun 2009 18:37:52 -0400
> Subject: Re: [Courier-imap] problem with large mailboxes and sort
>
> Jose Luis Marin Perez writes:
>
> > I have installed Horde-Webmail with Apache 2.2.11 + PHP 5.2.9 that
> > connects to the IMAP server Courier-Imap 4.1.2.
> >
> > The problem is with the mail accounts that have too many messages (+1500)
> > and the webmail is configured to sort by date or size it will take to
> > display more than 2 minutes.
> >
> > I have configured Courier-Imap with option IMAP_DISABLETHREADSORT = 0
> > means that the ordering is done on the server, there are some parameter or
> > trick you can do to get faster this order?
>
> It takes my IMAP client about 15 seconds to sort about 8,000 messages.
>
> For starters "webmail over IMAP" is the worst possible design I've ever seen
> in the last fifteen years. Although it's true that there are plenty of
> webmail software that babble IMAP, it doesn't make this approach any less
> stupid then it is. My webmail server, sqwebmail, does its job just fine
> without bothering to babble IMAP. It reads mail directly, from the maildir,
> which is hundreds of times faster.
>
> So, your first problem is that you've set up a horridly inefficient way to
> read one's mail. Secondly, even if the server is capable of sorting
> messages, it does not mean that your IMAP client will use this feature. Just
> because the server is capable of sorting messages, it has no way of forcing
> the IMAP client to make use of it. If the IMAP client insists on downloading
> every message in the folder, in order to sort them, there's nothing that the
> server can do about it. Because this is actually an optional IMAP feature,
> many IMAP clients don't even bother implementing it, instead choosing to
> always sort everything by themselves, because that'll work with any IMAP
> server.
>
>
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