[Unit]
Description=Courier IMAP (SSL)
Wants=courier-authdaemon.service
Wants=courier-imap-gencert.service
After=syslog.target
After=network.target
After=courier-authdaemon.target
After=courier-authdaemon.service
After=courier-imap-gencert.service

[Service]
EnvironmentFile=/etc/courier/imapd
EnvironmentFile=/etc/courier/imapd-ssl
Environment="SSLPIDFILE=/run/imapd-ssl.pid" "LOCKFILE=/run/imapd-ssl.pid.lock"
PIDFile=/run/imapd-ssl.pid
LimitNOFILE=65536
ExecStart=/usr/bin/env - /bin/sh -c " set -a ; \
  . /etc/courier/imapd ; \
  . /etc/courier/imapd-ssl ; \
  IMAP_TLS=1; export IMAP_TLS; \
  PROXY_HOSTNAME=$PROXY_HOSTNAME ; \
  /usr/sbin/courierlogger -pid=$SSLPIDFILE -start $SSLLOGGEROPTS \
    /usr/lib/courier-imap/couriertcpd -address=$SSLADDRESS \
    -maxprocs=$MAXDAEMONS -maxperip=$MAXPERIP $TCPDOPTS \
    $SSLPORT $COURIERTLS -server -tcpd /usr/sbin/imaplogin \
    /usr/sbin/imapd $MAILDIRPATH"
ExecStop=/usr/sbin/courierlogger -pid=$SSLPIDFILE -stop
ExecStopPost=/usr/bin/rm $SSLPIDFILE $LOCKFILE
Restart=always

[Install]
WantedBy=multi-user.target