On Thu, 2009-01-15 at 02:49, Frank Bonnet wrote:

Timo Sirainen wrote:

...

On Wed, 2009-01-14 at 16:28 +0100, Frank Bonnet wrote:

...

Hello

I noticed a problem after upgrading to 1.1.8

Users that access to their mailboxes using webmail squirrelmail and HTTPS using HTTP seems to work correctly but it not safe enough ...

There is an error message saying the imap server send a BYE command ...

I downgraded our Dovecot server to 1.1.7 then it works again ...

Like Tom said, the http vs https difference shouldn't be visible to Dovecot. Anyway do you see any errors in Dovecot's log files? http://wiki.dovecot.org/Logging

I KNOW all of this ... but that happen

I'll carefully read logfiles tomorrow then tell what I'll find.

And what version of SM you are using. We use the latest and have no issues, and you need to tell us what said the error, SM via php display, or apache or what.

On Thu, 2009-01-15 at 16:25 +0100, Frank Bonnet wrote:

I had to increase the max_mail_processes to 8192 to have a functionnal IMAP server with normal clients AND squirrelmail clients

8192 sounds enormous to me , any infos welcome !

How many imap processes have you running typically?

On Tue, 2009-01-20 at 10:06 +0100, Frank Bonnet wrote:

Timo Sirainen wrote:

...

On Thu, 2009-01-15 at 16:25 +0100, Frank Bonnet wrote:

...

I had to increase the max_mail_processes to 8192 to have a functionnal IMAP server with normal clients AND squirrelmail clients

8192 sounds enormous to me , any infos welcome !

How many imap processes have you running typically?

Did you found any explaination to this problem ? Do you think it could be a Linux problem or a Dovecot problem ?

If the problem had to do with max_mail_processes, Dovecot would have logged:

"Maximum number of mail processes exceeded (see max_mail_processes setting)"

Did it? If you can't find that from logs, then either you're not looking at the right logs (http://wiki.dovecot.org/Logging) or changing the max_mail_processes didn't actually do anything and instead simply restarting Dovecot fixed it (or the original problem just happened to go away for some other reason).