Having effectively killed legacy outlook by disabling the inclusion of the email string in any replies, when forced to change to new Outlook most of my inbox emails are missing, some folders are missing and the set up is not the same.

Richard Nowell 20 Reputation points
2026-06-20T13:02:49.16+00:00

As Legacy Outlook no longer includes the whole email string in any reply (WHY?) the fix is, apparently, to use new Outlook. Then the issue is that most of my inbox is missing and much of the layout set up is incorrect. Further, none of the predictive email addresses work and the search function has become a joke- taking 5-25 seconds to produce no results.

Why have you done this and what, please, is the fix? I am using Outlook for Mac on V16.110 and Microsoft 365. Please stop doing things like this.

Outlook | MacOS | Legacy Outlook for Mac | For business
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Anonymous
2026-06-20T14:48:54.81+00:00

Hi Richard Nowell 

I completely understand how frustrating this experience has been for you with both Legacy Outlook and the New Outlook for Mac. 

I would like to clarify that as a forum moderator, I do not have the ability to intervene directly in Microsoft products or make changes within the system due to privacy and service boundaries. 

As an alternative approach, you may still be able to continue using Legacy Outlook by reverting to a previous version. You can remove the current version 16.110 by going to Finder > Microsoft Outlook > Move to Trash, then install version 16.109.3. Based on testing and confirmation from other users, this version does not show the same behavior.

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You can download it from the updater.pkg available in the: Update history for Office for Mac - Office release notes | Microsoft Learn 

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After installing, you may also want to turn off automatic updates for Legacy Outlook to help keep the version stable. You can do this by going to Help > Check for Updates > unchecking “Automatically keep Microsoft apps up to date”. 

I hope this provides a helpful direction. 

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  1. Anonymous
    2026-06-24T09:28:37.9066667+00:00

    Hi Richard Nowell

    The Outlook for Mac version 16.110.1 in the Current Channel is now available, and this version includes a fix for the issue described. 

    You can update by going to Help > Check for Updates. 

    Alternatively, you may remove the current Outlook for Mac by going to Finder > Microsoft Outlook, right‑click > Move to Trash, then install version 16.110.1 using the updater.pkg available from the Update history for Office for Mac - Office release notes | Microsoft Learn image

    I hope this provides additional insight

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  2. Hornblower409 15,715 Reputation points
    2026-06-23T11:38:06.01+00:00

    May be fixed in 16.110.1 Current Channel (Preview). See the Answer by "Jayden-P Jun 23, 2026" in
    https://learn.microsoft.com/en-us/answers/questions/5923453/outlook-for-mac-bug-original-message-not-included?orderby=newest

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  3. Richard Nowell 20 Reputation points
    2026-06-20T16:15:24.88+00:00

    Thank you, I will try that, I really appreciate the help. I am at a loss to understand why they keep doing stuff like this.

    I am very grateful for your reply R

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