chown(/var/dovecot/login/ipc-proxy

[Marc Roos]

Can we remove/change this in the source? So we do not have to add the 
CAP_CHOWN with containers.

chown(/var/dovecot/login/ipc-proxy)

When run as root this has user dovenull, maybe this can be resolved by 
using a group dovenull? 

bash-5.0# ls -arlt
total 4
srw-rw-rw-    1 root     root             0 Nov 21 22:27 pop3
srw-rw-rw-    1 root     root             0 Nov 21 22:27 login
srw-------    1 dovenull root             0 Nov 21 22:27 ipc-proxy
srw-rw-rw-    1 root     root             0 Nov 21 22:27 imap
drwxr-xr-x    1 dovecot  dovecot       4096 Nov 21 22:27 ..
drwxr-x---    1 root     dovenull        60 Nov 21 22:27 .

Maybe this would work

srw-rw----    1 root  dovenull             0 Nov 21 22:27 ipc-proxy