One of most useful (and overdue) features in iOS 9 is (1) the ability to attach files stored in any cloud service to an existing email in the default Mail app; and (2) the ability to save an attachment directly from an email into a cloud service without leaving the app.
(1) When composing an email on the iPad, there will be paperclip on the short-cut bar, which leads to the list of cloud services. Also, if you press the screen there will be a pop-up menu with the option to attach a file (for both iPhone and iPad.
(2) When you receive an email with an attachment, you can long-press it to bring up the share sheet, which contains a button with a cloud icon an Save attachment
This works as expected on my Gmail and Yahoo accounts, but it does not work with my company's Microsoft Exchange account
- when I start a new email from my Exchange account from scratch, there will be no paperclip button to attach files
- however, if I reply to an email or if I start an email from within another app, the paperclip is there
- when I receive attachments on my Exchange account and I press the share sheet, there will not be any cloud button
Please let me know if you can replicate the issue and fix it.
Note that (1) and (2) have always been available in iOS in a more limited form: (1) starting an email from scratch with a file attachment has always been possible; (2) opening an attachment into a cloud app has always been possible, but it leads to switching
back and forth between Mail and the cloud app.