[Unit]
Description=Exim Mail Transport Agent
After=network.target
Conflicts=sendmail.service postfix.service

[Service]
PrivateTmp=true
Environment=QUEUE=1h
PIDFile=/usr/local/apps/exim/var/spool/exim/exim-daemon.pid
EnvironmentFile=-/etc/sysconfig/exim
ExecStart=/usr/local/apps/exim/bin/exim -bd -q${QUEUE}

[Install]
WantedBy=multi-user.target