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       dbmail-users - manages the DBMail user database.


       dbmail-users { -a username | -c username } [ -g clientid ] [ -m
       maxmail] [ -p passwordtype ] [ -P shadowfile ] [ -w password ] [ -W
       passwordfile] [ -u username ] [ -s aliases ] [ -S aliases ]

       dbmail-users { -d username | -e username }

       dbmail-users -l [userspec]

       dbmail-users -x alias [ -t forwards ] [ -T forwards ]


       The dbmail-users program enables you to manage the DBMail users. It
       lets you add, delete and change users as well as show information about
       a specific user or display a list of existing users. It also has the
       capability of adding/removing separate aliases.


       -a user
          Add a user

       -d user
          Delete a user

       -c user
          Change details for a user

       -e user
          Empty all mailboxes for a user

       -l [userspec]
          List information for matching users. If no userspec is given, lists
          all users and forwards in this format:

             -- users --
                username : the letter ’x’ : user id number : client id number : quota : used : comma, separated, aliases

             -- forwards --
                alias: comma, separated, forwards

       -x alias
          Create an external forwarding address


       -w passwd
          Specify user’s password on the command line

       -W [file]
          Read from a file or prompt for a user’s password

       -p pwtype
          Password type may be one of the following: plaintext, crypt,
          md5-hash, md5-digest, crypt-raw, md5-hash-raw, md5-digest-raw,
          md5-base64, md5-base64-raw.

       -P [file]
          Pull encrypted password from the shadow file

       -u user
          New username (only useful for -c, change)

       -g cid
          Assign the user to a client group.

       -m max
          Set the maximum mail quota in <bytes>B, <kbytes>K, or <mbytes>M,
          default in bytes If set to 0, there will be no limit.

       -s alias[,alias...]
          Adds a list of recipient aliases. An alias is an e-mail address that
          is being delivered to the DBMail mailsystem and should be delivered
          to this user.

       -S alias[,alias...]
          Removes a list of recipient aliases. Use wildcards ? and * to match
          any single character and any number of characters, respectively.

       -t forward[,forward...]
          Adds a list of deliver-to forwards.

       -T forward[,forward...]
          Removes a list of deliver-to forwards. Use wildcards ? and * to
          match any single character and any number of characters,


       -f configfile
          Specify an alternate config file. The utilities are currently
          hardcoded to use /etc/dbmail.conf for their configs, and will halt
          if the config file cannot be found. Use the -f configfile option to
          specify your system’s preferred config file location.

          Quietly skip interactive prompts and helpful status messages which
          would otherwise be printed to stdout. Use two -q’s to silence errors
          which would otherwise be printed to stderr.

          Operate verbosely. Some of the utilities in the DBMail suite can
          take two -v’s for extra verbosity. Those which don’t understand this
          convention won’t complain about having the extra -v and will simply
          operate at their normal verbosity.

          Show the version and copyright, then exit.

          Show a brief summary of options, then exit.


       One question we often see on the mailing list is what
       the difference is between aliases and forwards. When using
       dbmail-users, the different command line options are there because an
       alias attaches some arbitrary address to a particular user’s account,
       while a forward attaches some arbitrary address another arbitrary
       address or pipe out.

       When using dbmail-users with major option -c, you must use minor option
       -s/-S for modifying aliases. When using dbmail-users with major option
       -x, you must use -t/-T for modifying forwards.


       When creating a new user account, you must either add an initial alias
       that delivers to the account name, or make the account in the form of a
       fully qualified email address. For example, the user named Baz created
       like this:

          dbmail-users -a baz -p crypt -w psword

       will not actually receive any mail yet! You must be sure to add an

          dbmail-users -c baz -s baz@foodomain

       You may add multiple aliases by repeatedly calling the dbmail-users(8)
       utility, or by calling it with a comma-separated list of aliases:

          dbmail-users -c baz -s baz@foodomain,baz@bardomain

       Three catch-all modes are also supported, for domains, sub-domains, and
       local parts:

          dbmail-users -a baz -s @bazdomain

          dbmail-users -a baz -s @.allsubs.bazdomain

          dbmail-users -a baz -s baz@

       The first example catches email addressed to any user @bazdomain and
       delivers it to Baz’s INBOX. The second example catch email address to
       any user at any subdomain below .allsubs.bazdomain (not including
       allsubs.bazdomain itself!) The third example catches email addressed to
       baz@ at any domain.

       There is no support for delivering to a particular mailbox other than
       INBOX via the aliases system. Please use a Sieve script to sort mail
       like this.


       Incoming messages addressed to particular email addresses can be
       forwarded out to outside email addresses, piped out to a command (when
       prepended with | pipe) or piped out with an mbox-style From line to a
       command (when prepended with ! bang). For example:

          dbmail-users -x bar@domain -t bar@another.domain

          dbmail-users -x bar@domain -t "|/usr/sbin/superspamtrapper"

          dbmail-users -x bar@domain -t "!cat > /var/spool/mail/bar/whatever.mbox"

       Forwards can be listed using the same -l command as for users. For
       example, to see where the local address bar@domain might be forwarded
       to, use this:

          dbmail-users -l bar@domain
            forward [bar@domain] to [bar@another.domain]
            forward [bar@domain] to [|/usr/sbin/superspamtrapper]
            forward [bar@domain] to [!cat > /var/spool/mail/bar/whatever.mbox]

       Forwards can be removed using basic glob style pattern matching. A ?
       question means "match zero or one of any character" and * asterisk
       means "match zero or more of any character." For example:

          dbmail-users -x bar@domain -T "*"

       will complete and totally remove the bar@domain external alias and all
       of its forwarding addresses and commands.


       If you experience inexplicable problems with DBMail, please report the
       issue to the [1]DBMail Bug Tracker.


       DBMail and its components are distributed under the terms of the GNU
       General Public License. Copyrights are held variously by the authors
       listed below.


       DBMail is a collaborative effort among the core developers listed below
       and the tremendous help of the testers, patchers and bug hunters listed
       in the AUTHORS and THANKS files found in the DBMail source

          Eelco van Beek      Aaron Stone            Paul J Stevens
          Roel Rozendaal      Open Source Engineer   NFG Net Facilities Group BV
          Ilja Booij          Palo Alto, CA USA
          Koningsweg 4
          3582 GE Utrecht


       1. DBMail Bug Tracker