drwxrwx---   2 root     mail         1024 Dec 18 19:53 mail

-rw-rw----   1 sysadmin mail         1378 Dec 18 19:53 sysadmin 

mail::12:mail,exim

drwxr-xr-x   9 root     root         1024 Dec  4 15:16 spool 

exim:x:47:47:exim:/var/spool/exim: