Email Professional allows you to share folders of contacts, calendars and tasks.
Contacts
From Contacts, click New Public Folder, then choose name the folder and click Add
Calendar
From Calendar click New public calendar then choose a name and click Add
Activity
From Activities
click New Public Folder, choose name the activity and click Add
Share Folders, Calendar, or Tasks
To share folders with other users, you must be “owner” or “admin” of the folder.
Note: You can’t share personal Inbox.
Remember: It’s possible to share entire folders but not not individual elements contained within.
It’s possible:
– Assign permissions on a folder
– Change the permissions on a folder
– Give permission applying a profile
– Remove the permissions on a folder
How to share a folder
Create a public folder by clicking New Public Folder in the left column.
Select the folder
Click Actions icon 
to the right of the folder name
Click File Permissions
Type the name of the user you want to share the folder to (using the search box at the bottom left).
Click the user’s icon to select it.
Note: if you wite All users can share with all users in the domain
Once you have selected the user, or group with whom to share the folder, its name appears in the Permission Management screen.
By clicking on object you can define different permission levels to the user with which you have shared a folder.
Click Save.
To remove a user (or group) from sharing , just Click on the trash can icon to the right of the user you want to delete.
Predefined profiles sharing
Owner
Have administrative permissions, can grant permission to other users, can create objects (contacts, tasks, calendar appointments) and sub-folders, read, modify, and delete all objects.
Administrator
It has all the permits. You can create, read, modify, and delete objects and subfolders.
Author
You can create, read, modify, and delete objects and subfolders.
Guest
A visitor can read existing objects, but not modify or delete them.
Profiles, customizable sharing
Folder permissions
Permission for the objects, reading
Permission for the objects, writing
Permission for the objects, deleting
administrative permits
