By sharing E-Mails, address books, calendars, tasks, folders or files with read or edit access, you can co-operate with internal users or external partners. There are the following limitations for sharing objects.
In order to share data, you need to have administrator permissions for the respective folder.
The global address book can not be shared.
E-Mails can only be shared with internal users, not with external partners.
Address books, calendars, and tasks can only by shared with external partners with read access, not with edit access.
There are the following options:
You can create a public link to share data with read access. You can give this link to other persons.
You can invite internal users or external partners to a shared item to share data with specific persons with read or edit access.
You can access data shared by other users.
You can manage own shares by changing, adding or removing permissions.
In the Files app, you can view your shared files and folders in an overview page.