The AeroFS Attachment Manager allows for easy management of large and small email attachments. It does so by automatically stripping out attachment content, placing the content in AeroFS, and replacing it in the original email using a secure AeroFS link. This is accomplished using a server-side plugin for Microsoft Exchange. No client-side or end-user configuration is needed.
Depending on the version of Microsoft Exchange you are using, the following articles describe the setup and configuration process for this plugin.