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[GH-ISSUE #97] Outlook stalls when sync is running #562

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opened 2026-03-01 17:39:53 +03:00 by kerem · 10 comments

kerem commented

2026-03-01 17:39:53 +03:00

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Originally created by @Kugeleis on GitHub (Jan 6, 2016).
Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/97

When the sync is in progress my outlook is not usable. It reacts with massive delay and Windows proposes to close the non-reacting application. (outlook 2010 on windows 7 prof 32bit)
In the log I find hints for the reason:

attachments too big: System.Runtime.InteropServices.COMException (0xB1704005): Die Anlagengröße überschreitet das erlaubte Maximum.
too many open elements: System.Runtime.InteropServices.COMException (0xAF540305): Die Anzahl der Elemente, die gleichzeitig geöffnet werden können, wurde vom Serveradministrator begrenzt. Schließen Sie zunächst geöffnete Nachrichten, oder entfernen Sie Anhänge und Bilder von ungesendeten Nachrichten, die Sie gerade verfassen.

Is there a way to avoid this? The calendar items are not by me and I can't change them. I see some appointments with no attachments but many attendies with an item size >1MB.

Originally created by @Kugeleis on GitHub (Jan 6, 2016). Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/97 When the sync is in progress my outlook is not usable. It reacts with massive delay and Windows proposes to close the non-reacting application. (outlook 2010 on windows 7 prof 32bit) In the log I find hints for the reason: - attachments too big: System.Runtime.InteropServices.COMException (0xB1704005): Die Anlagengröße überschreitet das erlaubte Maximum. - too many open elements: System.Runtime.InteropServices.COMException (0xAF540305): Die Anzahl der Elemente, die gleichzeitig geöffnet werden können, wurde vom Serveradministrator begrenzt. Schließen Sie zunächst geöffnete Nachrichten, oder entfernen Sie Anhänge und Bilder von ungesendeten Nachrichten, die Sie gerade verfassen. Is there a way to avoid this? The calendar items are not by me and I can't change them. I see some appointments with no attachments but many attendies with an item size >1MB.

kerem closed this issue

2026-03-01 17:39:54 +03:00

kerem commented

2026-03-01 17:39:54 +03:00

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@aluxnimm commented on GitHub (Jan 6, 2016):

do you only sync calendar or also contacts? for calendar we don't sync attachments at all. but you could disable sync attendees and organizer and body of appointments in advanced options - mapping configuration. for contacts you can disable sync of contact pictures.

@aluxnimm commented on GitHub (Jan 6, 2016): do you only sync calendar or also contacts? for calendar we don't sync attachments at all. but you could disable sync attendees and organizer and body of appointments in advanced options - mapping configuration. for contacts you can disable sync of contact pictures.

kerem commented

2026-03-01 17:39:54 +03:00

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@Kugeleis commented on GitHub (Jan 6, 2016):

I sync only the calender. In advanced options I disabled attendees already. I will try it with disabled body now.

@Kugeleis commented on GitHub (Jan 6, 2016): I sync only the calender. In advanced options I disabled attendees already. I will try it with disabled body now.

kerem commented

2026-03-01 17:39:54 +03:00

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@Kugeleis commented on GitHub (Jan 6, 2016):

It still stalls with everyhing disabled.

@Kugeleis commented on GitHub (Jan 6, 2016): It still stalls with everyhing disabled. ![2016-01-06 12_39_21-appointment mapping](https://cloud.githubusercontent.com/assets/9948777/12141768/ae1f831e-b472-11e5-92ae-3d71cb82e08e.png)

kerem commented

2026-03-01 17:39:54 +03:00

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@aluxnimm commented on GitHub (Jan 6, 2016):

Can you attach the full debug log

@aluxnimm commented on GitHub (Jan 6, 2016): Can you attach the full debug log

kerem commented

2026-03-01 17:39:54 +03:00

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@Kugeleis commented on GitHub (Jan 6, 2016):

here you go
log.zip

@Kugeleis commented on GitHub (Jan 6, 2016): here you go [log.zip](https://github.com/aluxnimm/outlookcaldavsynchronizer/files/79738/log.zip)

kerem commented

2026-03-01 17:39:55 +03:00

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@aluxnimm commented on GitHub (Jan 6, 2016):

Ok there are issues with recurrence exceptions and getting mail adress of attendees. Those should be fixed with latest commits which will be in next release. But I can build you a test release 1.13.1 and you can check it

@aluxnimm commented on GitHub (Jan 6, 2016): Ok there are issues with recurrence exceptions and getting mail adress of attendees. Those should be fixed with latest commits which will be in next release. But I can build you a test release 1.13.1 and you can check it

kerem commented

2026-03-01 17:39:55 +03:00

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@aluxnimm commented on GitHub (Jan 6, 2016):

https://sourceforge.net/projects/outlookcaldavsynchronizer/files/1.13.1_Test/

@aluxnimm commented on GitHub (Jan 6, 2016): https://sourceforge.net/projects/outlookcaldavsynchronizer/files/1.13.1_Test/

kerem commented

2026-03-01 17:39:55 +03:00

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@Kugeleis commented on GitHub (Jan 6, 2016):

This actually seems to fix it. No error log comes up. Sync time dropped from 4 minutes to 9 seconds. Thanks, great work & great support.

@Kugeleis commented on GitHub (Jan 6, 2016): This actually seems to fix it. No error log comes up. Sync time dropped from 4 minutes to 9 seconds. Thanks, great work & great support.

kerem commented

2026-03-01 17:39:55 +03:00

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@aluxnimm commented on GitHub (Jan 6, 2016):

good news thx for testing

@aluxnimm commented on GitHub (Jan 6, 2016): good news thx for testing

kerem commented

2026-03-01 17:39:55 +03:00

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@aluxnimm commented on GitHub (Jan 8, 2016):