Outlook sometimes hangs and does not update incoming email

[jgilbert2017]

(version 4.0.0.0)

I'm seeing some sporadic issues where Outlook hangs indefinitely and does not update incoming email.

The UI is responsive but the tray icon is stuck in the "updating" state and new mail does not show up.

Outlook will also hang on exit and need to be killed in the task manager to restart.

I've captured a memory dump and the hang is in VSTA_Main but the stack trace is just memory addresses (no method names/symbols). I'm not using any other plugins/addons other than outlookcaldavsynch.

How best to debug?

[Dim3nsioneer]

same issue here with V4.1.0

[jgilbert2017]

i still can't get a stack, but a possible hint indicates a file system operation failing (possibly due to excessive NTFS fragmentation???).

wish i could get a stack so the issue can be directly handling in the code, but for now i'm going to try cleaning up my disks and defragging to mitigate.

The following exception objects were found in the heap.
Name    Value   Type    Occurrence count
 
 {"Cannot access a disposed object."}       System.ObjectDisposedException  1
 {"The requested operation could not be completed due to a file system limitation "}        System.IO.IOException   1
 Message    The requested operation could not be completed due to a file system limitation  string  
 StackTrace     System.Diagnostics.StackFrame[] 
 InnerException null        
 {}     System.Exception    1
 

[jgilbert2017]

after defragging i still got a hang. attaching a debugger to the running outlook.exe process does not give any stack or tasks :-(.

does anyone know if there is a flag / registry setting etc that will force outlook to host the vsto addin in a debug mode?

[jgilbert2017]

possible issue- SynchronizerFactory.CreateHttpClient does not set the Timeout property on the HttpClient. Tracing the code it looks like this is only used for timezone info fetching in GlobalTimeZoneCache but i suppose it could be a problem.

        private HttpClient CreateHttpClient(ProxyOptions proxyOptionsOrNull)
        {
            var proxy = proxyOptionsOrNull != null ? CreateProxy(proxyOptionsOrNull) : null;
            var httpClientHandler = new HttpClientHandler
            {
                Proxy = proxy,
                UseProxy = proxy != null
            };

            return new HttpClient(httpClientHandler);
        }

[jschiefer]

Seeing the same issue with 4.2.0, syncing with Nextcloud 23.

[GregorB54321]

unfortunatelly I can not name a reason, but with 4.4.1 I still have that or a very similar issue. Outlook gets unresponsive and Mousepointer is alternating between pointer and sandtimer two to three times a second. I also suppose it is somehow network related.

[GregorB54321]

may this helps?

log.txt:

Zeile 1851454:  INFO  2024-10-24 17:23:09,575 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:00:00.2550076
Zeile 1851950:  INFO  2024-10-24 18:31:05,531 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:41:05.4296295
Zeile 1852244:  INFO  2024-10-24 19:11:02,153 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:39:56.1472462
Zeile 1852406:  INFO  2024-10-24 20:49:27,486 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 01:38:24.9894062
Zeile 1852458:  INFO  2024-10-24 20:49:34,148 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:00:00.9459476
Zeile 1852636:  INFO  2024-10-24 21:21:06,632 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:01:30.9125136
Zeile 1852790:  INFO  2024-10-24 21:21:15,577 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:00:08.9126134
[disabled the Plugin; but this is also no solution :-/ ]
Zeile 1853720:  INFO  2024-11-04 15:45:51,803 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:43:27.2038919
Zeile 1854160:  INFO  2024-11-04 16:27:21,925 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:41:29.7430350
Zeile 1854321:  INFO  2024-11-04 18:33:44,867 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 02:06:22.6285999
Zeile 1854473:  INFO  2024-11-04 18:33:52,800 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 00:00:07.4349843

 DEBUG 2024-11-04 16:27:34,614 [ VSTA_Main] Synchronizer.DataAccess.CalDavDataAccess . MoveNext                       - Exiting GetEntities.
 INFO  2024-11-04 16:27:39,222 [ VSTA_Main] onizer.Implementation.CalDavRepository`1 . MoveNext                       - Duration of 'CalDavRepository.Get (1 entitie(s))': 00:00:10.1842887
 INFO  2024-11-04 16:27:39,238 [ VSTA_Main] nization.States.UpdateFromNewerToOlder`7 . Resolve                        - Considering '/remote.php/dav/calendars/username/arbeit/2a000005-d95b-4632-acd2-9fdb8c956667.ics' (modified at '') newer than '000000003E7B331A96E0000005EF0800060D9B1807000FE12BAF3AC1D311A5E70800060D9B180000008BE372000092C1A5DF23C0694C89980F075CF4BF0F0003A7F6C1AC0000' (modified at '24.10.2024 19:31:55').
 WARN  2024-11-04 16:27:39,693 [ VSTA_Main] .Implementation.Events.EventEntityMapper . CreateMailUriOrNull            - Invalid email address URI mailto:/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIB00000SPDLT)/cn=Recipients/cn=d18ecfd66873446c90000025ac5b6f15-Abcdefg.Hij for attendee.
 WARN  2024-11-04 16:27:39,979 [ VSTA_Main] .Implementation.Events.EventEntityMapper . CreateMailUriOrNull            - Invalid email address URI mailto:/o=ExchangeLabs/ou=Exchange Administrative Group (FYDIB00000SPDLT)/cn=Recipients/cn=69149985d90849b6a00000d56e2af0ba-TS-EU_klmno for attendee.
 INFO  2024-11-04 18:33:44,852 [ VSTA_Main]  GenSync.Synchronization.Synchronizer`11 . MoveNext                       - A repository jobs: Create 0 , Update 1 , Delete 0
 INFO  2024-11-04 18:33:44,852 [ VSTA_Main]  GenSync.Synchronization.Synchronizer`11 . MoveNext                       - B repository jobs: Create 0 , Update 0 , Delete 0
 DEBUG 2024-11-04 18:33:44,867 [ VSTA_Main]  GenSync.Synchronization.Synchronizer`11 . MoveNext                       - Exiting.
 INFO  2024-11-04 18:33:44,867 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Kalender'': 02:06:22.6285999

log.txt is logging since years in debug, size around 460MiB. May this impacts performance also?!

In the long running reports the "Invalid email address" line is repeating a couple of times (10th to 100th times) every 10-60secs. Still blaming about the same Recipients.