Error configuring unix_listener stats-writer

Jerry jerry at
Sun Feb 17 14:31:11 EET 2019

On Sun, 17 Feb 2019 10:47:29 +0100, Peter Nabbefeld via dovecot stated:

>I've got a very strange problem:
>When I try to configure the stats-writer socket, I'm told the 
>configuration is a duplicate, though none exists in the configuration 
>files. So I'd guess the configuration is set either built-in or
>I've put the following into conf.d/10-master.conf:
>service auth {
>   unix_listener auth-userdb {
>   }
>   unix_listener stats-writer {
>     user = vmail
>     group = vmail
>     mode = 0666
>   }
>BTW, using imap for mail traffic.
>Is there any tool displaying an "effective" config tree (i.e., a tool 
>displaying the resulting configuration from every file, displaying the 
>original file and line number)? "dovecot -a" only displays all 
>configurations, but without source reference, so it's impossible to
>find out about the details.  :-(
>Kind regards

"doveconf -n" should do what you want. Post the "entire output" from
that command here so we an analyze it.

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