NAME
postmap - Postfix lookup table management
SYNOPSIS
ppoossttmmaapp [-NNffiinnoopprrvvww] [-cc configdir] [-dd key] [-qq key]
[filetype:]filename ...DESCRIPTION
The ppoossttmmaapp command creates or queries one or more Postfix lookup tables, or updates an existing one. The input and output file formats are expected to be compatible with: mmaakkeemmaapp filetype filename < filename If the result files do not exist they will be created with the same group and other read permissions as the source file. While the table update is in progress, signal delivery is postponed, and an exclusive, advisory, lock is placed on the entire table, in order to avoid surprises in spectator programs. IINNPPUUTT FFIILLEE FFOORRMMAATT The format of a lookup table input file is as follows: +o A table entry has the form key whitespace value+o Empty lines and whitespace-only lines are ignored, as are lines
whose first non-whitespace character is a `#'.
+o A logical line starts with non-whitespace text. A line that
starts with whitespace continues a logical line. The key and value are processed as is, except that surrounding whitespace is stripped off. Unlike with Postfix alias databases, quotes can-
not be used to protect lookup keys that contain special characters suchas `#' or whitespace. The key is mapped to lowercase to make mapping
lookups case insensitive.CCOOMMMMAANNDD-LLIINNEE AARRGGUUMMEENNTTSS
-cc configdir
Read the mmaaiinn..ccff configuration file in the named directory instead of the default configuration directory.-dd key Search the specified maps for key and remove one entry per map.
The exit status is zero when the requested information was found.If a key value of - is specified, the program reads key values
from the standard input stream. The exit status is zero when at least one of the requested keys was found.-ff Do not fold the lookup key to lower case while creating or
querying a map.-ii Incremental mode. Read entries from standard input and do not
truncate an existing database. By default, ppoossttmmaapp creates a new database from the entries in ffiilleennaammee.-NN Include the terminating null character that terminates lookup
keys and values. By default, Postfix does whatever is the default for the host operating system.-nn Don't include the terminating null character that terminates
lookup keys and values. By default, Postfix does whatever is the default for the host operating system.-oo Do not release root privileges when processing a non-root input
file. By default, ppoossttmmaapp drops root privileges and runs as the source file owner instead.-pp Do not inherit the file access permissions from the input file
when creating a new file. Instead, create a new file with default access permissions (mode 0644).-qq key Search the specified maps for key and write the first value
found to the standard output stream. The exit status is zero when the requested information was found.If a key value of - is specified, the program reads key values
from the standard input stream and writes one line of key value output for each key that was found. The exit status is zero when at least one of the requested keys was found.-rr When updating a table, do not warn about duplicate entries;
silently replace them.-vv Enable verbose logging for debugging purposes. Multiple -vv
options make the software increasingly verbose.-ww When updating a table, do not warn about duplicate entries;
silently ignore them. Arguments: filetype The database type. To find out what types are supported, use the"ppoossttccoonnff -mm"" ccoommmmaanndd..
The postmap omn cn ur ay upre fl tp, u i
can create only the following file types: bbttrreeee The output file is a btree file, named filename..ddbb. This is available only on systems with support for ddbb databases. ddbbmm The output consists of two files, named filename..ppaagg and filename..ddiirr. This is available only on systems with support for ddbbmm databases. hhaasshh The output file is a hashed file, named filename..ddbb. This is available only on systems with support for ddbb databases.Use the command ppoossttccoonnff -mm to find out what types of database
your Postfix installation can support. When no filetype is specified, the software uses the database type specified via the ddeeffaauullttddaattaabbaasseettyyppee configuration parameter. filenameThe name of the lookup table source file when rebuilding a data-
base. DIAGNOSTICS Problems are logged to the standard error stream and to ssyyssllooggdd(8). No output means that no problems were detected. Duplicate entries are skipped and are flagged with a warning. ppoossttmmaapp terminates with zero exit status in case of success (includingsuccessful ppoossttmmaapp -qq lookup) and terminates with non-zero exit status
in case of failure. ENVIRONMENT MMAAIILLCCOONNFFIIGG Directory with Postfix configuration files. MMAAIILLVVEERRBBOOSSEE Enable verbose logging for debugging purposes. CCOONNFFIIGGUURRAATTIIOONN PPAARRAAMMEETTEERRSSThe following mmaaiinn..ccff parameters are especially relevant to this pro-
gram. The text below provides only a parameter summary. See post-
conf(5) for more details including examples. bbeerrkkeelleeyyddbbccrreeaatteebbuuffffeerrssiizzee ((1166777777221166))The per-table I/O buffer size for programs that create Berkeley
DB hash or btree tables. bbeerrkkeelleeyyddbbrreeaaddbbuuffffeerrssiizzee ((113311007722))The per-table I/O buffer size for programs that read Berkeley DB
hash or btree tables.ccoonnffiiggddiirreeccttoorryy ((sseeee ''ppoossttccoonnff -dd'' oouuttppuutt))
The default location of the Postfix main.cf and master.cf con-
figuration files.ddeeffaauullttddaattaabbaasseettyyppee ((sseeee ''ppoossttccoonnff -dd'' oouuttppuutt))
The default database type for use in newaliases(1), postalias(1)and postmap(1) commands.
ssyyssllooggffaacciilliittyy ((mmaaiill)) The syslog facility of Postfix logging. ssyyssllooggnnaammee ((ppoossttffiixx)) The mail system name that is prepended to the process name insyslog records, so that "smtpd" becomes, for example, "post-
fix/smtpd".SEE ALSO
postalias(1), create/update/query alias database postconf(1), supported database types postconf(5), configuration parameters syslogd(8), system logging README FILES Use "ppoossttccoonnff rreeaaddmmeeddiirreeccttoorryy" or "ppoossttccoonnff hhttmmllddiirreeccttoorryy" to locate this information. DATABASEREADME, Postfix lookup table overview LLIICCEENNSSEE The Secure Mailer license must be distributed with this software. AUTHOR(S) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA POSTMAP(1)