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Man Pages
SOCKETMAP_TABLE(5) FreeBSD File Formats Manual SOCKETMAP_TABLE(5)

socketmap_table - Postfix socketmap table lookup client 

postmap -q "string" socketmap:inet:host:port:name


postmap -q "string" socketmap:unix:pathname:name
postmap -q - socketmap:inet:host:port:name <inputfile


postmap -q - socketmap:unix:pathname:name <inputfile


The Postfix mail system uses optional tables for address rewriting. mail routing or policy lookup.

The Postfix socketmap client expects TCP endpoint names of the form inet:host:port:name, or UNIX-domain endpoints of the form unix:pathname:name. In both cases, name specifies the name field in a socketmap client request (see "REQUEST FORMAT" below).


Socketmaps use a simple protocol: the client sends one request, and the server
  sends one reply. Each request and each reply are sent as one netstring object.








The socketmap protocol supports only the lookup request. The request has the
  following form:




  
name <space> key

  
Search the named socketmap for the specified key.




Postfix will not generate partial search keys such as domain names
    without one or more subdomains, network addresses without one or more
    least-significant octets, or email addresses without the localpart, address
    extension or domain portion. This behavior is also found with cidr:, pcre:,
    and regexp: tables.









The Postfix socketmap client requires that replies are not longer than 100000
  characters (not including the netstring encapsulation). Replies must have the
  following form:


  
OK <space> data

  
The requested data was found.

  
NOTFOUND <space>

  
The requested data was not found.

  
TEMP <space> reason

  

  
TIMEOUT <space> reason

  

  
PERM <space> reason

  
The request failed. The reason, if non-empty, is descriptive text.










This map cannot be used for security-sensitive information,
because neither the connection nor the server are authenticated.









http://cr.yp.to/proto/netstrings.txt, netstring definition
postconf(1), Postfix supported lookup tables
postmap(1), Postfix lookup table manager
regexp_table(5), format of regular expression tables
pcre_table(5), format of PCRE tables
cidr_table(5), format of CIDR tables










Use "postconf readme_directory" or "postconf
  html_directory" to locate this information.

DATABASE_README, Postfix lookup table overview










The protocol limits are not yet configurable.








The Secure Mailer license must be distributed with this software.








Socketmap support was introduced with Postfix version 2.10.







Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA
Wietse Venema
Google, Inc.
111 8th Avenue
New York, NY 10011, USA








  

    
    
  







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