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Outlook for Mac freezes when trying to answer an email in hebrew

Roi L 0 Reputation points
2025-12-08T11:55:35.0433333+00:00

Hi,

Over the past month, my Mac Outlook client has frozen whenever I try to reply to an email with Hebrew or a Hebrew subject.

The only workaround is to discard the email and answer from Outlook Web.

From the activity monitor, I can see that whenever I try to reply to such an email, a new "Microsoft Outlook Web Content" process runs at 100% CPU.

I'm running Mac os 26.1 and Outlook version 16.103.3

How can this be solved?

Appreciate any help with this.

Outlook | MacOS | New Outlook for Mac | For business
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  1. Jayden-P 12,855 Reputation points Microsoft External Staff Moderator
    2025-12-08T13:55:50.7933333+00:00

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    Hi @Roi L

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

    I have tested on my device, and I did not see the same behavior as yours. My Microsoft Outlook Web Content process runs at 1% CPU.

    If you switch to Legacy Outlook, do you meet this issue?

    Did you download New Outlook for Mac on App Store or directly on Microsoft website?

    If you download from the App Store, uninstall it and download Outlook version 16.103.3 via Update history for Office for Mac - Office release notes | Microsoft Learn

    User's image

    You can also try restarting your Mac or Start up your Mac in safe mode - Apple Support

    I also found this article which might be related to your case, the suggested solution is to rebuild the Outlook profile or database. Close the app completely. Head to this folder ~/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles. Back up your main profile folder first thing. Then make a fresh profile and add your accounts back in. If things work fine with the new one the old profile was likely corrupted.

    Please try and let me know if it works for you.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

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  2. Roi L 0 Reputation points
    2025-12-09T11:32:14.5433333+00:00

    Hi,

    I've uninstalled it and reinstalled it from the Microsoft website, but it didn't solve the issue.

    I also deleted my profile and rebuilt my Outlook profile from scratch, but it didn't solve the issue.

    Switching to Legacy Outlook has solved this, but I would like to use the new Outlook without this bug.

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