I use Dovecot 1:2.3.4.1-5+deb10u1 on Debian 10. Setting "stats_writer_socket_path=" does not resolve the issue in my case, I also get "net_connect_unix() failed". The following patch is supposed to fix the issue:
https://dovecot.org/pipermail/dovecot/2019-January/114170.html https://github.com/dovecot/core/commit/3fdb968687bf896a3e13c846e5eb6f0310dff65b Can this patch be included in Dovecot on Debian 10? Best regards.

