Using classic Outlook for Windows in business environments
The steps I shared earlier are based on your thread tag Classic Outlook for Windows. However, I received your feedback that you are using macOS.
If you are using Outlook for Mac, this appears to match a known issue that Microsoft has confirmed in Legacy Outlook for Mac. Specifically, the issue affects the inclusion of the original message content when replying to or forwarding emails. The product team is currently investigating this behavior, and a fix will be released once it becomes available.
For the latest updates, please refer to the following article, which will be updated as new information becomes available: Replying to or forwarding an email does not include the original message in the email body in legac…
As a workaround, you may want to consider downgrading to an earlier version of Outlook, if your environment allows it. Alternatively, you may temporarily switch to New Outlook until a fix is released.
If you would like to roll back to an earlier version of Outlook as a workaround, please try the following steps:
- Open any Office app > Help > Check for Updates > clear the checkbox for “Automatically keep Microsoft Apps up to date”
- Quit all Office apps.
- Go to Applications > choose Microsoft Outlook > Move to Trash.
- Install the 16.109.3 package from this link: Update history for Office for Mac - Office release notes | Microsoft Learn
Thank you for your patience and understanding.