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The IMAP protocol provides commands to create, delete, and
rename folders. Thus you can use almost any IMAP client to manage
public folders in the MessageStore, simply by logging in as a user with
top-level management privileges, and creating folders under the
top-level "Public Folders" node.
A good use of public folders is to subscribe a public folder to a
mailing list so that individual users will not have to. First, verify
that the public folder exists and grants "post" rights to
anyone. The simplest way is to make sure the
DEFAULT_ACL option includes the p right after
the anyone identifier before you create the folder. Next
use your IMAP client to create the desired folder under the "Public
Folders" tree. To verify that delivery to the new public folder is
working, send a test message to the folder's address. Its address will
be
post+folder@host |
post is replaced with the value of the
POST_USER option, folder is the name of the
new public folder, and host is the domain name you
configured for the MessageStore. Note that the default value of the
POST_USER option is post.
Once this test succeeds, set your mail client's identity so that the
From: address is the folder's posting address. Then simply
follow the instructions for mailing list subscription. This often
involves sending a message to the e-mail address
listname-request@listdomain with a subject or body of
"SUBSCRIBE".
The PMDF MessageStore supports the standard IMAP Access Control List
ACL and QUOTA extensions documented in RFCs
2086 and 2087. (See Table 3-1 for a list of the ACL rights letters
and what they mean.) This means that advanced IMAP clients such as
Mulberry and Execmail will be able to manage the access control lists
on your MessageStore directly.
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