[Dovecot] Need to move mail

Hi all

My imap server is getting to the stange where I need to start worring about the disk usage.

Due to the number of users we seem to be hiring, I need to start looking at a new mail server, suppose its a blessing in disguise too.

Would it be ok to just tar my current users mail (there home directory, I dont use virtual setup) and the untar it on the new mail server.

Is there anything that dovecot on the new machine will complain about. Obviously I would tar everything, indexes etc.

Just something I was wondering.

Kind Regards Brent Clark