Save email attachments to SharePoint.
Please have a 'Save to SharePoint' option in Outlook, so users can save attached files directly in Outlook (rather than download them and then upload them).
Out of the box you can use drag and drop of one or more email from Outlook directly to SharePoint and Teams. By doing this, the entire email including attachments are saved and can be open from SharePoint/Teams where you have access to the attached files.
We have had the same issue and decided to to develop a solution that is able to save and attaching emails/attachments from/to outlook/sharepoint and teams. For small teams we made the solution free to the community.
So if you still looking for a free solution, you are welcome to reach out.
Steen – (https://axpoint.com)