[Bug 270691] New: IMAP agent stops working after some time with Exchange Server

[Thiago Macieira]

https://bugs.kde.org/show_bug.cgi?id=270691

           Summary: IMAP agent stops working after some time with Exchange
                    Server
           Product: Akonadi
           Version: 1.5.0
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: NOR
         Component: IMAP resource
        AssignedTo: ervin at kde.org
        ReportedBy: thiago at kde.org
                CC: vkrause at kde.org, kdepim-bugs at kde.org


Version:           1.5.0 (using Devel) 
OS:                Linux

After a while (about an hour or so), the IMAP agent connected to my Microsoft
Exchange IMAP server stops synchronising. Pressing F5 on any folder from this
IMAP server or using Ctrl+L or any method of synchronisation results in
absolutely nothing happening. This includes using Akonadi Console (RMB >
Synchronize > Synchronize All).

The only solution to getting synchronisation back is to use the Akonadi
Console, right click on the agent and select Restart Agent. Sometimes, it
requires restarting more than once.

This could be related to the KWallet password caching, but I have not been able
to determine if this is connected to the wallet closing. I have changed my
KWallet settings before to see if it made a difference and I could not make it
work.

I should also point out that the Exchange Server IMAP is notorious for being
broken. It disconnects the IDLE connection far too soon (simply drops the
connection, with no IMAP commands) and it sometimes replies with BAD at
unexpected times.

Reproducible: Sometimes

Steps to Reproduce:
1. Make sure that the agent is synchronising with Exchange
2. Wait some time (an hour or so, maybe more, maybe less, no clue what the real
reason is)
3. Synchronise again (Ctrl+L, F5, Akonadi Console)

Actual Results:  
*NOTHING* happens. No synchronisation is done. No IMAP traffic happens -- the
agent is disconnected from the server (no TCP/IP connection established) and it
doesn't try to connect.

Expected Results:  
The agent should reconnect to the server and synchronise.

OS: Linux (i686) release 2.6.36.2-server-1mnb
Compiler: gcc

This account is configured for 15-minute interval checking.

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