Hi @G H S,
Welcome to Microsoft Q&A forum.
Thank you for sharing your experience with saving image attachments in the new Outlook for Windows.
From my testing, you can save documents by selecting Save All Attachments beneath the image files, or by choosing Save All to OneDrive.
If these options aren’t appearing on your side, feel free to let me know your New Outlook version so I can take a closer look.
As another option, you can use Outlook on the Web, where the Download all feature is available for saving your documents.
If you need additional assistance, your IT administrator can also help review and confirm the available features in your environment.
I hope this information helps. Please try the steps and let me know whether they resolve the issue. If the problem persists, we can work together to find a solution.
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