Como verificar se o Postfix foi compilado com suporte para o Dovecot SASL?

Question

O estado das instruções Dovecot :

Since version 2.3, Postfix supports SMTP AUTH through Dovecot SASL as introduced in the Dovecot 1.0 series. If using Postfix obtained from a binary (such as a .rpm or .deb file), you can check if Postfix was compiled with support for Dovecot SASL by running the command:

postconf -a

Once you have verified that your installation of Postfix supports.... Dovecot SASL

A saída que recebo é:

cyrus
dovecot

Bem, pode ser uma pergunta trivial para alguns, mas como você verifica o suporte Dovecot SASL? A saída dovecot significa que suporta o Dovecot SASL? Se não, qual saída deve haver para indicar isso?

Debian Jessie, Dovecot 2.2.13, Postfix 2.11.3

    

Answer 1

A página postconf(1) man (que você deve ler) explica:

       -a     List  the available SASL server plug-in types.  The SASL plug-in
              type is selected with the smtpd_sasl_type configuration  parame‐
              ter by specifying one of the names listed below.

              cyrus  This  server  plug-in  is available when Postfix is built
                     with Cyrus SASL support.

              dovecot
                     This  server  plug-in  uses  the  Dovecot  authentication
                     server,  and  is available when Postfix is built with any
                     form of SASL support.

              This feature is available with Postfix 2.3 and later.