hi,

we use TWIG (twig.screwdriver.net) as webmail frontend; it connects via IMAP4 and have 
additional features ala calendar, todo, addressbook (in mysql db). we also have 
written a data-directory (personal file uploads) feature.
we have about 17000 mailboxes. over 1000 different active webmail users per week.

but there are some problems when opening large IMAP folders (>3MB), then IMAP 
sometimes consume 100% cpu for 3-8min.


regards
hannes

------------------------------------------------------------
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Ing. Johannes Fuchs
Leitung Development

EDUCATION HIGHWAY
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-----Urspr�ngliche Nachricht-----
Von: Markus [mailto:[EMAIL PROTECTED]
Gesendet: Mittwoch, 02. April 2003 00:59
An: [EMAIL PROTECTED]
Betreff: RE: [IMail Forum] IMAP Performance??


Most of our customers use the original Imail web frontend. There are
only some fanatic *nix guys they feel bether if their webmail is served
by their OS  ;-)
Then there are this type of users who has used IMP on their old ISP and
don't want to "learn" how to use the new interface.

Around 20 users are using our IMAP-Service over IMP an we've never any
problem. 
As I can remember the IMail Server 7.15 Patch covers some issues with
the IMAP service...

Markus



> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> Ives Stoddard
> Sent: Wednesday, April 02, 2003 12:16 AM
> To: [EMAIL PROTECTED]
> Subject: [IMail Forum] IMAP Performance??
> 
> 
> Markus,
> 
> I've recently noticed that processor utilization of the IMAP 
> service started spiking a couple times a day, utilizing most 
> of the processor and degrading the performance of other IMail 
> services.  We only have about 200 active IMAP users currently 
> and are running v7.12 on that particular server.
> 
> Have you seen similar types of behaviour from IMail's IMAP services?
> 
> I've added a performance monitor alert to restart the service 
> to avoid causing issues for other users connected to the web 
> interface.  I've considered lowering the run-time priority of 
> the IMAP process, but don't feel this is the appropriate workaround.
> 
> Any thoughts would be greatly appreciated.
> 
> Ives
> 
> ----- Original Message -----
> From: "Markus" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, April 01, 2003 4:53 PM
> Subject: RE: [IMail Forum] Webmessaging with other OS.
> 
> 
> > We've testet IMP from the horde project. (www.horde.org/imp)
> >
> > It run's as a web-frontend on a linux server and connect's to our 
> > imail servers IMAP port. Until now we haven't seen any 
> problems. Keep 
> > in mind that with this solution you can't use special Imail 
> functions 
> > like change password, forwarding, host- list- and 
> > server-administration. On the other side you have a very 
> stable, multi 
> > language webmail frontend that work's on all well known 
> browser types.
> >
> > Markus
> >
> >
> >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED] On Behalf Of dchan
> > > Sent: Tuesday, April 01, 2003 11:30 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: [IMail Forum] Webmessaging with other OS.
> > >
> > >
> > > I've called support about oddities involving the 
> javascript involved 
> > > with Imail webmessaging and was cheerfully told that "Imail 
> > > webmessaging is optimized to run with Internet Explorer". 
> Like many 
> > > things involving Imail support these days, asking 
> anything further 
> > > about this topic resulted in "stonewalling" and terse 
> replies from 
> > > the support tech.
> > >
> > > Any luck building/installing Mozilla?
> > >
> > > ---------- Original Message ----------------------------------
> > > From: "Vincent Toussaint" <[EMAIL PROTECTED]>
> > > Reply-To: [EMAIL PROTECTED]
> > > Date:  Fri, 7 Mar 2003 18:03:03 -0500
> > >
> > > >Anybody tried to use webmessaging on other OS ???
> > > >We have about 15 SGI stations running on Irix6.5 and 
> none can run 
> > > >webmessaging (with netscape 4.7) without problem.
> > > >
> > > >Can't "add Condition" in the Processing rules section and some 
> > > >other problem where resizing netscape windows refresh the content
> > > of the page
> > > >and the user lose all the info typed before resizing...
> > > >
> > > >
> > > >Just asking... I know that Irix isn't a common Os...
> > > >
> > > >Vincent
> > > >
> > > >---------------------------------------
> > > >Vincent Toussaint
> > > >Network Administrator
> > > >Hybride Technologies
> > > >www.hybride.com
> > > >
> > > >
> > > >
> > > >To Unsubscribe: 
> http://www.ipswitch.com/support/mailing-> lists.html
> > > >List Archive: 
> > > >http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
> > > >Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
> > > >
> > >
> > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html
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> > >
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> > > http://www.ipswitch.com/support/IMail/
> > >
> >
> >
> > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html
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> > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
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> >
> 
> 
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> 
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