11:memory:/system.slice
10:freezer:/
9:cpuset:/
8:net_prio,net_cls:/
7:devices:/system.slice/dovecot.service
6:blkio:/system.slice
5:hugetlb:/
4:perf_event:/
3:cpuacct,cpu:/system.slice
2:pids:/
1:name=systemd:/system.slice/dovecot.service