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what is interferences.xml created in outlook365 mail folder
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 10%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
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These are tracking files. It lets Outlook know where to resume uploading data from the .ost file to Office 365.
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Please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client.
Based on my search, interferences.xml is a file that Outlook 365 uses to keep track of data uploaded from the .ost file to Office 365. It is created when you shut down Outlook and deleted when Outlook catches up with the data synchronization.
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