If connecting more than 50 Dropbox accounts, a Dropbox production status is required.This will enable up to 500 users to connect to the application.Select Enable Additional Users in the Development Users section.

All permissions in the Collaboration, Team, Team Data, Files, Members and Sessions sections should be disabled.

In Files and folders, enable all permissions.

Leave the account_info.write permission disabled.

In the Account Info section, the account_info.read permission will be enabled by default.

Next to Permission type click Scoped App.

Next to Development users select Enable Additional Users.Click the following link: Dropbox Platform.Link Dropbox attachments to a message composed in Webmail.Connect to a Dropbox account in Webmail.This article will describe how to perform the following: How do I enable and setup Dropbox integration and utilize Dropbox features in MDaemon Webmail? In version 17.0 and above, MDaemon Email administrators can enable Dropbox support which will allow end users to save email attachments to Dropbox or add shared links to Dropbox files in mail composed in MDaemon Webmail.

Dropbox setup