Problem syncing mailboxes using doveadm sync

[Przemysław Orzechowski]

Hi
command im using command bellow on destination server rtying to make 
keep it in sync after initialy doing doveadm backup -R

doveadm -Dv -o imapc_host=src.srv -o imapc_user=test at domain.tld 
-opop3c_user=test at domain.tld -o imapc_password='pass' -o 
pop3c_password='pass' -o mail_fsync=never -o mail_prefetch_count=20 sync 
-f -1 -R -u test at domain.tld imapc:

Im using dovecot on both source and destination server (source is 
dovecot 1.0.10 destination is 2.2.9)

Destination box is Ubuntu 14.04 LTS with dovecot installed using apt.

When i create new mail message on the serrver where i run this command 
its not propagated to the remote (old) server
Is this command wrong ?