Outlook on Windows (classic version) stops syncing new emails

Question

Outlook on Windows (classic version) stops syncing new emails

Rousse Jackson 40

Outlook on Windows (classic version) stops syncing new emails after running for a while. The inbox doesn’t update unless I restart the app. Send/receive shows no errors, and the connection status says “Connected to Microsoft Exchange.”

Rasmus Nyerup Hansen 0 Reputation points

2025-11-04T13:42:27.26+00:00

We have the same issue with all our 15x PC's. Our outlook was already updated, so its not that.

@Rousse Jackson what fix did you use?

Did you do the repair Outlook, readding the email account or did you create a new outlook profile?

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Rasmus Nyerup Hansen 0 Reputation points

2025-11-04T13:42:27.26+00:00

We have the same issue with all our 15x PC's. Our outlook was already updated, so its not that.

@Rousse Jackson what fix did you use?

Did you do the repair Outlook, readding the email account or did you create a new outlook profile?

Answer 1

Hi @Rousse Jackson

Thank you for posting your question in Microsoft Q&A.

We understand you are encountering an issue with new mails not syncing in Classic Outlook.

Before we dive into troubleshooting, please ensure your Outlook application is fully updated by navigating to:

File > Office Account > Update Options > Update Now.

If the issue persists after updating, run a repair using this guide: Repair Outlook - Microsoft Support

Next, please try removing and re-adding your email account. If the issue still persists, re-check your Cached Exchange Mode settings. You can refer to this guide for detailed steps: Cached Exchange Mode - Microsoft Support

If the issue continues for either version, you could try to create a new Outlook profile, re-add your account to the new profile, and check if the same issue still occurs.

I hope this helps.

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