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

[Service]
PrivateTmp=true
PIDFile=/run/exim.pid
Environment=QUEUE=1h
EnvironmentFile=-/etc/sysconfig/exim
ExecStartPre=-/usr/libexec/exim-gen-cert
ExecStart=/usr/sbin/exim -bd -q${QUEUE}
ExecReload=/bin/kill -HUP $MAINPID

[Install]
WantedBy=multi-user.target