You can use Newforma from within MS Outlook to sent large files via a link.
In Outlook click on File Transfers > Send Files:
A Newforma dialog box will appear (be patient, it takes a while).
Select a project
Select contacts of type in email addresses
Write a subject
Add your message (under Remarks tab)
Click on Files to Transfer tab.
Then Add Files... button, or alternatively Add Folder... button.
Click on Options if you want to change expiry date etc.
When done hit OK button.
The recipients will receive and email that looks like this: