Sharing Folders (Access Control Lists) with Other Users
WebMail enables users to share their folders with other JMU
users. Privileges are given in WebMail, but shared folders can
only be seen in an IMAP e-mail client (Outlook).
To enable others to share your folder. Click on Options
in the navigational bar.
Adding and Removing Users in Access Control Lists
An access control list (ACL) allows you to specify who can see
and use your folders. An ACL is a list of users you create along
with the access permissions you're allowing for each. This enables
you to protect the privacy of your folders, while at the same time
allowing accessibility to others. You must assign access permissions
for anyone you want to see the contents of, or send mail to, a
folder. You do this by adding their user name to the ACL and
specifying them as a user for the folder they will be able to
access.
Note: The special anyone user
must be given the Mail ACL permission on subfolders to which
you want mail to be delivered (your Inbox folder has the Mail
permission granted to you by default so you can receive mail to it).
For example, if you want mail to be able to be delivered directly to
a sub-folder of your Inbox, you grant the "anyone" user Mail
permissions on that folder.
To change access permissions on a folder:
- From the Options pages (Webmail) click Access
Control.
- From the Access Control List for menu, select the
folder for which you want to change the access permissions.
If the folder does not appear in the list, click on
Folders in the navigational bar and create a new folder.
- Select the checkbox for the permission you want to change in
the corresponding row of the User list. When selected, a
check mark appears showing the permission is activated. Select an
activated checkbox to turn the permission off. Click OK.
| Permission |
Meaning |
| read |
The user can see that the folder exists, open the folder,
read messages in the folder, copy messages from the folder, and
see which messages were read. (Equivalent to the l,
r, and s IMAP permissions.) |
| write |
The user can copy messages into the folder and modify state
information for the folder, such as \Flagged,
\Answered, and \Draft flags for each
message. This permission allows the user to modify the
\Deleted state for any message. (Equivalent to w,
i, and d IMAP permissions.) |
| mail |
The user can submit messages to the SMTP service for
delivery to the folder. (Equivalent to the p IMAP
permission.) |
| admin |
The user can change the ACL on the folder and create
subfolders and ACLs. (Equivalent to c and a
IMAP permissions.) |
To add a user to an access control list:
- From the Options pages (Webmail) or the Account
pages (Administration Suite) click Access Control.
Result: The Access Control List page displays.
- From the Access Control List for menu, select the
folder for whose access control list you are adding a user.
Result: The User list changes to reflect the users that
have access permissions for that folder.
- In the empty text field at the bottom of the User list,
enter the login name for the user you are adding and select the
permissions for that user that you want to grant. Click OK.
Result: The user is added to the User list with the granted
permissions.
You can remove someone from an access control list, no longer
allowing them the ability to access your folders. You can change the
Access Control permissions at any time to discontinue privileges you
previously set.
To View a Shared Folder in an IMAP client (Outlook) follow the
steps in the Outlook tutorial Subscribing and Unsubscribing to
Folders.
To remove a user from an access control list:
- Click Options.
- From the Access Control List for menu, select the
folder for whose access control list you are removing a user.
- In the User list, select all the check marked boxes for
the permissions of the user you want to remove. The check marks
disappear and the respective permissions are set to off.
- Click OK. The system receives the changes and the
selected user is removed.
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