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O365 spam email duplicating issue

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When we migrated to ESET Network security we noticed that our spam folder in shared inbox got flooded. We have removed all the emails and the next spam folder got flooded with 25k+ emails. That in turned made Outlook on all computer to stop responding as it was processing all the emails.

Only one email was being duplicating one day. Then another two emails on the second day...

Work around was to disable spam protection. I found some similar problems on this forum, but all were related to older versions. Is there a way to fix problem so we could turn back on the spam protection?

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If the issue occurs with the latest Endpoint 9.1.2057, carry on as follows:

  1. Close MS Outlook
  2. Enable advanced logging under Help and support -> Technical support
  3. Launch MS Outlook and reproduce the issue
  4. Stop logging
  5. Collect logs with ESET Log Collector and upload the generated archive here.
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11 minutes ago, jonatansf said:

If log exceeds 100MB where can I upload it?

OneDrive, Dropbox, WeTransfer.com, etc.

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