In the past and even today, we are used to “share” documents and files by sending copies as email attachments. This behavior is often the source of end user frustration when message size limitations are enforced. Especially when size limitations for internal and external recipients are different. Users do not understand why they cannot send any file to any recipient of their choice.
More than likely, you are an email admin, with deep experience in Exchange. Maybe you have recently migrated to Exchange Online, and are thinking “Hey, I know how to collaborate in Exchange, so what’s the big fuss about.” Let review where we have been and where Office 365 is headed.