table-socketmap(5)

table-socketmap5

Format description for smtpd socketmap tables

Overview

This manual page documents the file format of "socketmap" tables used by the smtpd(8) mail daemon.

The format described here applies to tables as defined in smtpd.conf(5).

Socketmap table

A "socketmap" table uses a simple protocol. The client sends a single-line request and the server sends a single-line reply.

The table may be used for any kind of key-based lookup and replies are expected to follow the formats described in table(5).

Releases

3 releases since Debian 11 (Bullseye); the text changed 1 time.

  1. 11–12
  2. 13

History

The first version of table_socketmap was written in 2014. It was converted to the stdio table protocol in 2024.

Authors

table_socketmap was initially written by Gilles Chehade ⟨[email protected]⟩. The conversion to the stdio protocol was done by Omar Polo ⟨[email protected]⟩.

From opensmtpd-table-socketmap 1.1.1-1+b1 in Debian 13 (Trixie). Parsed by carta from the page's mdoc source.