"Outlook is trying to retrieve data from the MS exchange server outlook.office365.com" is constantly appearing.

Anonymous
2022-11-21T02:02:06+00:00

My Outlook (O365) and many others is constantly freezing. We are in online mode due to accessing shared mailboxes.

This issue started occurring after Microsoft released a big update on 10 November 2022. The message appears below everytime Outlook freezes. We can't be in cached mode as it causes issue with shared mailboxes. How do I fix this issue? thanks Lia

Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2022-11-23T22:12:37+00:00

    Yes since the 10th of November we have had major performance issues with Outlook running in Online mode in a virtual environment. No answers from MS except to say change config to cache mode which we cannot accept due to limitations with search function on server 2019. Our environment happily running in online mode until 10th November. Are there any update to this. MS Technician very unhelpful

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  2. Anonymous
    2022-11-23T22:13:47+00:00

    No this has not helped our environment

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  3. Anonymous
    2022-11-23T22:18:38+00:00

    Yes Cached mode is not an option for us also. It is a workaround that hides the underlying issue instead of resolving it. Redirecting an OST on a shared environment comes with it's own set of issues. Such as disk capacity, Disk IO issues, maintenance and cleanup, corruptions. We shouldn't need to implement a workaround for something that clearly changed on the 10th.

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  4. Anonymous
    2022-11-23T22:25:01+00:00

    Agreed thanks for replying. This issue is giving our environment great stress in our busiest period our staff cannot work efficiently. I have spent almost 2 weeks updating our environment to latest version, testing resources on virtual machines, creating new machines, questioning AV design, testing mailboxes, removing shared mailboxes. Major HEADACHE! I logged a ticket and technician believes it is our virtual environment however has been running with same image for months with no issue.

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  5. Anonymous
    2022-11-24T00:25:50+00:00

    HI Steve

    Curious what is your exchange envirnonment? - we have a hybrid setup - just using out onprem servers for SMTP relay and all our mailboxes are online exchange.

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