# The mail/s-postgray port

## s-postgray-0.8.3 – fast and secure postfix graylisting policy server

## Description

    RFC 6647 graylisting policy server, following the recommended practice
    noted in the standard document.
    Graylisting defers message acceptance (for a specific recipient / sender
    / client_address value tuple) a configurable number of times
    via a standardized SMTP response (see allow(5), RFC 5321), which does
    not prevent message delivery from SMTP M(ail) T(ransfer) A(gent)s,
    but can help against simple spam producing programs.

    s-postgray clients are started via spawn(8), as shown in the manual.
    The server is started by clients as necessary, but it can be --startup
    also since v0.8.0.

    s-postgray needs to be configured as the builtin DB store path is /tmp
    (see manual), user and group settings are inherited from spawn(8) (or
    the environment which uses --startup).

WWW: https://www.sdaoden.eu/code.html#s-postgray

Only for arches
  aarch64 aarch64 alpha amd64 amd64 arm arm hppa i386 i386 mips64 mips64 mips64el mips64el powerpc powerpc powerpc64 powerpc64 riscv64 riscv64 sparc64 sparc64
Categories:
  mail

## Library dependencies

## Build dependencies

## Run dependencies