Delete all items in SyncIssues/Conflicts folder on ExchangeOnline server

Sp3ar 1 Reputation point
2021-03-27T08:24:15.653+00:00

Hi,

We running some problem in our organization, where a user mailbox folder size - SyncIssues/Conflicts - has almost 33 GB, and it's growing slowly! (mailbox size 100GB)
Sure the Outlook app always downloading the full folder, and reaching the 50 GB .ost limit.
Setting up the app to cache mail from 6 month, but i think this just not a permanently solution here.

In Outlook Online headind the Settings/General/Storage, i want to empty the hole folder with the option, but it's clearly doing NOTHING.

Search the solution overall 3 days and won't get any.
I tried to connect the EXO services whit PowerShell (i'm the administrator, and i have rights), i see the folder, but can't clear it. (-DeleteContet)
Also trying the MFCMapi app, (it's really cool app btw) but i needed to realise this clearing the local folders, not the server foldelrs.

Pff....
Have you guys any, any advice here?

Thank you very much,
Martin

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
5,061 questions
Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,369 questions
Exchange Server Development
Exchange Server Development
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Development: The process of researching, productizing, and refining new or existing technologies.
528 questions
0 comments No comments
{count} votes

2 answers

Sort by: Most helpful
  1. Michael Hahn 46 Reputation points
    2021-03-28T16:51:40.02+00:00

    Hi,

    maybe a bit stupid question at first:

    Have you checked what is inside the syncerror/issues folder? What are the messages there telling? Because there must be a reason for this HUGE amount of data inside that folder. So that could be the first thing to check.

    Than the -deletecontent command could be a possible way. What command have you tried? and what error returned?

    MFCMapi is realy good. For EXO you can also try "EWS EDITOR". It can do nearly the same. But you have to setup EWS impersonification first!


  2. KyleXu-MSFT 26,241 Reputation points
    2021-03-29T05:45:27.183+00:00

    @Sp3ar

    I tried to connect the EXO services whit PowerShell (i'm the administrator, and i have rights), i see the folder, but can't clear it. (-DeleteContet)

    Also trying the MFCMapi app, (it's really cool app btw) but i needed to realise this clearing the local folders, not the server foldelrs.

    I am puzzled by these above sentences: From the first sentence, I know that you want to delete those emails from Server side, it will also sync to client side. But from the seconded sentence, you said that you need to release the local folder but remain the server folder.

    Here are my suggestions to delete emails:

    From the client side, since you could use MFCMapi, why not open Outlook and delete emails from mailbox directly? Both of them could delete email from local cache then sync to server side.

    From the Exchange online side, Search-Mailbox cannot used to delete email from a specific folder. You need to EWS to delete email from this mailbox, if your want to do that, I will help you add the dev tag on this thread.

    If it doesn't work on your mailbox, could you provide more detailed information about it? It will help us to narrow down this issue.


    If the response is helpful, please click "Accept Answer" and upvote it.
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.