1[Unit] 2Description=Postfix Mail Transport Agent 3After=syslog.target network.target 4Conflicts=sendmail.service exim.service 5 6[Service] 7Type=forking 8PIDFile=@LOCALSTATEDIR@/spool/postfix/pid/master.pid 9ExecStartPre=-@SBINDIR@/check_hostname.sh 10ExecStartPre=-@LIBEXECDIR@/postfix/aliasesdb 11ExecStart=@SBINDIR@/postfix start 12ExecReload=@SBINDIR@/postfix reload 13ExecStop=@SBINDIR@/postfix stop 14 15[Install] 16WantedBy=multi-user.target 17