PMDF popstore & MessageStore Manager's Guide

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

where 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.