Using Outlook Web Access (OWA) via the browser or on a mobile device and need to include large attachments? If you’re using OneDrive for Business, you now have the option of including file links rather than attaching the file itself.
Similar options for consumers have long existed in both Outlook.com and Gmail, but being able to draw on the business skew of OneDrive is useful if you have shared file access and management needs. The new option also lets you automatically upload any attachments from your own computer to OneDrive as part of the process.
By default, any files attached will be made available for editing by email recipients, but you can edit the permissions from within OWA. Hit the link for more details.
Introducing a new way to share files with Outlook Web App [Office Blogs]