IMAP timeouts

Javier Perez pepebuho at pananet.com
Fri Aug 6 11:10:58 UTC 2004


On Thu, 2004-08-05 at 14:52, Alexander Dalloz wrote:
> Am Do, den 05.08.2004 schrieb Javier Perez um 20:46:
> 
> > > > I had problems with timeouts in IMAP. Everything was working fine with Outlook 2000, Courier-Imap and FC2 running the Courier-Imap.
> > > > 
> > > > Suddenly, now I get frequent timeouts.
> > > 
> > > And what did you change when first time the timeouts occur? You must
> > > have changed either on server side or client side. 
> > > 
> > Server side I do not remember changing anything. I checked my changelog
> > and there are no program installations or conf file changes.
> > 
> > Client Side, I applied the latest windows security updates with the
> > Cumulative Security Update for IE Service Pack 1 (KB867801)
> 
> Such security updates were often cause for trouble by side effects in
> the past. Even updates were taken back because of causing problems.
> 
> Maybe it is an anti-virus tool on the client or a "personal firewall";
> the usual suspects.
>  
> > > > No matter what client I use (outlook, outlook xpress, thunderbird, mozilla) I get timeouts after downloading around 20 headers. When Outlook express tells me about it, I tell it to stop and then the client download some more messages.
> > > 
> > > And from a different client host?
> 
> Try it from a different client host. I bet it will confirm that it is
> your Windows[tm] host after the update causing the timeouts.
> 
> > > > I thought It had to do with the mailserver and I switch courier for dovecot, but I get the same result 
> > > > 
> > > > I think maybe it is something with the wrappper service or something like that.
> > > 
> > > Which wrapper service?
> > > 
> > I remember that Courier had a daemon called couriertcp which called the
> > imap program each time someone logged on port 143. I just learning
> > dovecot and I am not sure if there is some sort of play like this for
> > the dovecot imap to work. I am still learning how it works. But at
> > least, I know that inside the server it is working fine because
> > Evolution does not have any problem. The problem is in the
> > communication between an external client and the server.
> > I already changed the client and the server, therefore whatever problem
> > is left should be on the link connecting them both.
> 
> Ok, I understand. Dovecot runs as it's own daemon, without a wrapper in
> front or (x)inetd controlled.
> 
> Alexander
> 
Hi
I can confirm it now. KB867801 broke my system. I inserted Knoppix on
the same machine and Kmail worked perfectly as a client with the IMAP
server. Therefore, something in KB867801 is causing the timeouts. 






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