Hi Aki!
On Tue, 14 Jun 2016, aki.tuomi@dovecot.fi wrote:
Are you using systemd by chance?
Yes, with the default dovecot.service file provided with 2.2.24:
$ systemctl cat dovecot
# /lib/systemd/system/dovecot.service
# This file is part of Dovecot
#
# If you want to pass additionally command line options to the dovecot
# binary, create the file:
# /etc/systemd/system/dovecot.service.d/service.conf'. # In this file create a Service section and configure an Environment with # the variable OPTIONS'. For example:
#
# [Service]
# Environment='OPTIONS=-p'
#
# In the Service' section you may also specify various other setting. # If you have trouble with Too many open files' you may set:
#LimitNOFILE=8192
#
# If you want to allow the Dovecot services to produce core dumps, use:
#LimitCORE=infinity
[Unit] Description=Dovecot IMAP/POP3 email server Documentation=man:dovecot(1) Documentation=http://wiki2.dovecot.org/ After=local-fs.target network.target
[Service] Type=forking ExecStart=/opt/dovecot/sbin/dovecot PIDFile=/var/run/dovecot/master.pid ExecReload=/opt/dovecot/bin/doveadm reload ExecStop=/opt/dovecot/bin/doveadm stop PrivateTmp=true NonBlocking=yes # Enable this if your systemd is new enough to support it: #ProtectSystem=full
[Install] WantedBy=multi-user.target
# /etc/systemd/system/dovecot.service.d/override.conf [Service] LimitNOFILE=22000
Greetings Roland