Outlook.com will allow you to save attachments directly to OneDrive
Now, when receiving emails with an attached Office document Outlook.com allows you to view or download. However, in some accounts, the company is testing a new contextual menu with three functions: view online, download and save to OneDrive.
The change also affects other file types. For example, you can view photos in a slide show, play music files and view videos. All in Outlook.com. But the best part of all this is the ability to easily save attachments from Outlook.com in OneDrive.
I have multiple Microsoft accounts (for testing or other reasons), but the ability to save to OneDrive is currently available only for one of them. Ie, Microsoft will be rolling out this feature gradually (the same image was running almost all the innovations implemented in Outlook.com for the last time).