Mailing_Lists

   With PMDF DB you can create and maintain your own mailing lists.
   A mailing list is merely a collection of e-mail addresses with
   which you associate an alias. Or, looked at a little differently,
   a mailing list is an alias which expands to a list of e-mail
   addresses. When you address a mail message to the alias, it
   actually goes to all of the addressees listed in the mailing
   list. The act of sending a mail message to a mailing list is
   referred to as "posting".

   A mailing list is created in three steps:

   1. Create a text file containing the list of e-mail addresses
      associated with the mailing list. Each address should be on a
      separate line in the file. The file itself is referred to as a
      "mailing list file"; the addresses in the file are the mailing
      list's membership.

   2. Set the protection of the mailing list file so that it is
      world readable

      $ SET PROTECTION=(W:R) filename

      Here, FILENAME is the name of the mailing list file created in
      Step 1.

   3. Choose an alias name, ALIAS-NAME , to associate with the
      mailing list. Then, in PMDF DB, issue the commands

      db> add alias-name "<filename"
      db> set alias-name public

      FILENAME should include a full path specification including
      the disk and directory name.

   After these steps have been taken, the mailing list is set up and
   ready to use.

   For example, suppose the user sue@example.com wants to set up a
   mailing list named sample-list. The members of the mailing list
   will be bob@example.com, judy@example.com, ralph@sample.com,
   and sue@example.com. Sue first creates the mailing list file
   D1:[SUE]SAMPLE.DIS which contains the four lines

   bob@example.com
   judy@example.com
   ralph@sample.com
   sue@example.com

   She then makes sure the distribution file is world readable by
   explicitly setting its protection with the DCL SET PROTECTION
   command,

   $ SET PROTECTION=(W:R) D1:[SUE]SAMPLE.DIS

   Finally, Sue establishes the public alias FOO-LIST as follows:

   $ PMDF DB
   db> add foo-list "<d1:[sue]sample.dis"
   db> set foo-list public
   db> show foo-list attributes
   Key          Value
   -----------  -----------------------------
   foo-list     <d1:[sue]sample.dis
   Attributes:  public,no-expand,block-receipts,mail-address
   [1 entries shown]
   db>

   By declaring the list to be public, Sue is allowing other
   people to post messages to this mailing list. They should do
   so by addressing their messages to sue+sample-list@example.com.
   Messages so addressed will then be received by the members of the
   list as specified by the contents of the file D1:[SUE]SAMPLE.DIS.

   At any time you can add or remove members from the mailing list.
   You do so by simply editing the mailing list file removing or
   adding addresses from or to it.

   As another example, mailing lists defined in LDAP can also be
   used, for example:

   db> add ldap_all_users <"""ldap:///dc=example,dc=edu?mail?sub?(cn=*)"""

   Note the three double-quotes around the LDAP URL. This is
   required.