DBMAIL-USERS(8)

NAME

dbmail-users - manages the DBMail user database.

SYNOPSIS

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 ]

DESCRIPTION

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.

MODE OPTIONS

-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

MINOR OPTIONS

-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,
respectively.

COMMON OPTIONS

-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.

-q

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.

-v

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.

-V

Show the version and copyright, then exit.

-h

Show a brief summary of options, then exit.

ALIASES VS. FORWARDS

One question we often see on the dbmail@dbmail.org 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.

ALIASES

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 alias:

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.

FORWARDS

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.

BUGS

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

LICENSE

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

AUTHOR(S)

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
distribution.

Eelco van Beek Aaron Stone Paul J Stevens
Roel Rozendaal Open Source Engineer NFG Net Facilities Group BV Ilja Booij Palo Alto, CA USA http://www.nfg.nl
IC&S http://hydricacid.com
Koningsweg 4
3582 GE Utrecht
http://www.ic-s.nl

REFERENCES

1. DBMail Bug Tracker

http://dbmail.org/index.php?page=bugs

12/27/2007 DBMAIL-USERS(8)