[Dovecot] INBOX cant be created

[Radim Kolar]

> doveadm(admin): Error: Can't create mailbox INBOX: Permission denied
>
> The INBOX exists but has a wrong owner.
nope
ponto# cd /var/mail
ponto# mv admin/ admin.X
ponto# doveadm mailbox create -u admin INBOX
doveadm(admin): Error: Can't create mailbox INBOX: Permission denied

but it might be that ordinary user admin cant create directories in 
/var/mail
message from IMAP reply  is wrong for sure because mailbox does not exists:

ponto# cd /var/mail
ponto# mv admin admin.x
ponto# telnet localhost imap
3 select inbox
3 NO Mailbox doesn't exist: INBOX
4 create INBOX
4 NO [ALREADYEXISTS] Mailbox already exists: INBOX