If the Outlook application is not updating the Inbox folder, then carry out the simple troubleshooting methods given below to fix it.
Initially, check whether your account settings are configured correctly. To check them, follow the instructions provided below.
If the Outlook application is not updating the Inbox folder again, then check whether you have applied any filters to the folders. Remove the Inbox folder filters, if applied, by following the instructions given below.
An alternative way to remove the filter from the Inbox folder:
If the “Outlook not updating Inbox” issue remains unresolved, launch the Outlook application in Safe mode, and then check whether the Inbox folder is able to receive new emails.
Now, open the Inbox folder and check whether the issue is resolved. If not, create a new Outlook account or profile and use it to resolve this issue.
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