Classic OUTLOOK app is not sending and receiving emails timely

Hi @Alen Cortez,

Thank you for posting you question on Microsoft Q&A Community. We're happy to help you with your concern.

To help us narrow down the issue with the Classic Outlook app not sending or receiving emails timely, could you please clarify a few things:

1/ Is this affecting all emails or only specific senders/recipients?

Are both sending and receiving delayed, or just one?

2/ When did the issue start?

Is it happening consistently or intermittently?

3/ Are you using Outlook with an Exchange account, Microsoft 365, or another provider?

Is this happening on one device or multiple?

4/ Are there any noticeable delays in other apps or internet connectivity?

Are you seeing any error messages or sync warnings?

5/ Have you tried restarting Outlook or the device?

Have you checked for pending updates or run a repair?

Once we have this information, we’ll be better equipped to investigate and assist you further.

Looking forward to your response.

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If you are using the classic Outlook desktop client, then try to check this issue via Outlook Web App to see whether the problem still occurs.