When I do
netstat -tanup as root on my Debian host, process
1/init is displayed for port 993. How is this possible ? I never saw such behavior.
systemctl list-sockets shows the correct service
dovecot associated to port 993.
EDIT: I noticed another strange thing: Sytemd reports that davecot is listening on port 143 (imap) and dovecot is configured to not listen on port 143. I get a warning in the logs about that:
dovecot: master: Error: systemd listens on port 143, but it's not configured in Dovecot. Closing.: 2 Time(s)