Outlook.com now lets you add attachments from Google Drive and share photos from Facebook
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Context & Ripple Effects
Microsoft has been steadily turning Outlook.com into an integration surface rather than a closed mailbox: the 2015 preview added add-ins from Uber, PayPal, Evernote, and Boomerang, and Outlook for iOS gained native editing of Word, Excel, and PowerPoint attachments. The move also answers Google on its own turf — Google's earlier Drive plug-in for Office for Windows already let Office users work on files stored in Drive.
By letting Outlook.com users attach straight from Google Drive and share Facebook photos, Microsoft is treating rival clouds as first-class sources inside its own client — the same direction Google took when Inbox added save-to-Drive alongside Trello and GitHub bundling last month.
First-order effects
- Outlook.com users can attach Drive files and share Facebook photos without downloading and re-uploading, removing the friction that previously pushed cross-platform users toward Gmail.
- Google gains distribution it didn't pay for: Drive becomes a default attachment source inside a competitor's mail client, reinforcing its role as the file layer regardless of which inbox sits on top.
Second-order effects
- Other webmail providers face pressure to match cross-cloud attachment support, since storage lock-in stops being a differentiator once any client can reach any drive.
- Facebook gets a passive engagement channel — photo sharing routed through email extends its content's reach without new product work on its side.
Third-order effects
- If the pattern holds, the mailbox becomes a neutral composition layer over competing clouds and social graphs, with platforms competing on integration breadth rather than storage quotas — a structural loosening of the walled gardens both Microsoft and Google spent a decade building.
The trend: Webmail clients are evolving from walled-garden storage into integration hubs that treat rival cloud services as first-class attachment sources.