Provided by: opensmtpd_5.7.3p2-1_amd64 bug

NAME

       makemap - create database maps for smtpd

SYNOPSIS

       makemap [-o dbfile] [-t type] file

DESCRIPTION

       Maps provide a generic interface for associating textual key to a value.  Such
       associations may be accessed through a plaintext file, database, or DNS.  The format of
       these file types is described below.  makemap itself creates the database maps used by
       keyed map lookups specified in smtpd.conf(5).

       makemap reads input from file and writes data to a file whose name is made by adding a
       ``.db'' suffix to file.  The current line can be extended over multiple lines using a
       backslash (Sq \.)  Comments can be put anywhere in the file using a hash mark (Sq #,) and
       extend to the end of the current line.  Care should be taken when commenting out multi-
       line text: the comment is effective until the end of the entire block.  In all cases,
       makemap reads lines consisting of words separated by whitespace.  The first word of a line
       is the database key; the remainder represents the mapped value.  The database key and
       value may optionally be separated by the colon character.

       The options are as follows:

            -o dbfile
                   Write the generated database to dbfile.

            -t type
                   Specify the format of the resulting map file.  The default map format is
                   suitable for storing simple, unstructured, key-to-value string associations.
                   However, if the mapped value has special meaning, as in the case of the
                   virtual domains file, a suitable type must be provided.  The available output
                   types are:

                 aliases
                        The mapped value is a comma-separated list of mail destinations.  This
                        format can be used for building user aliases and user mappings for
                        virtual domain files.

                 set    There is no mapped value – a map of this type will only allow for the
                        lookup of keys.  This format can be used for building primary domain
                        maps.

PRIMARY DOMAINS

       Primary domains can be kept in tables.  To create a primary domain table, add each primary
       domain on a single line by itself.

       In addition to adding an entry to the primary domain map, one must add a filter rule that
       accepts mail for the domain map, for example:
           table domains "/etc/domains"
           accept for domain <domains> deliver to mbox

VIRTUAL DOMAINS

       Virtual domains may also be kept in tables.  To create a virtual domain table, add each
       virtual domain on a single line by itself.

       Virtual domains expect a mapping of virtual users to real users in order to determine if a
       recipient is accepted or not.  The mapping format is an extension to aliases(5), which
       allows the use of ``user@domain.tld'' to accept user only on the specified domain,
       ``user'' to accept the user for any of the virtual domains, ``@domain.tld'' to provide a
       catch-all for the specified domain and ``@'' to provide a global catch-all for all
       domains.  smtpd(8) will perform the lookups in that specific order.

       To create single virtual address, add ``user@example.com user'' to the users map.  To
       handle all mail destined to any user at example.com, add ``@example.com user'' to the
       virtual map.

       In addition to adding an entry to the virtual map, one must add a filter rule that accepts
       mail for virtual domains, for example:
           table vdomains "/etc/vdomains"
           table vusers "/etc/users"
           accept for domain <vdomains> virtual <vusers> deliver to mbox
           accept for domain example.org virtual <vusers> deliver to mbox

FILES

            /etc/aliases
                   List of user mail aliases.

            /etc/secrets
                   List of remote host credentials.

EXIT STATUS

       The makemap utility exits 0 on success, and >0 if an error occurs. makemap

SEE ALSO

       aliases(5), smtpd.conf(5), editmap(8), newaliases(8), smtpd(8)

HISTORY

       The makemap command first appeared in OpenBSD 4.6 as a replacement for the equivalent
       command shipped with sendmail.

                                    $Mdocdate: July 19 2013 $                          MAKEMAP(8)