It appears the session expiration issues were occurring when roundcube had problems talking to the imap server, either slow responsiveness or blatant error.  Is there a way to prevent roundcube from closing the session when an imap error occurs, or at least increase the timeout value waiting for a response?

On Wed, Feb 15, 2012 at 10:48 AM, Jernej Porenta <jernej.porenta@arnes.si> wrote:

On Feb 15, 2012, at 5:08 PM, James Devine wrote:

> Any idea how I might verify what the problem is?  I'm not seeing anything popping up in the error logs and I'm not able to reproduce this myself, I'm going off reports from customers

I believe that you should check the invalid session information in the roundcube log:
Feb 15 18:38:49 a roundcube: Aborted session 1fkpva9li86orrd9lo0dlvlur3; no valid session data found
Feb 15 18:40:19 a roundcube: Aborted session tv251jg03u5velh2t40om7tlg0; no valid session data found

But i don't know how to reproduce the issue. It might even be the customer browser issue...

Cheers, Jernej