Transfering mailboxes from one Cyrus to another

[Dr. Harry Knitter]

Hello,

I am searching for an easy way to transfer mailboxes fom a RHEL4 system to a 
debian etch system.
The directoy structure for a certain user on RedHat is:
 /var/spool/imap/user/<user>

On debian it is:
/var/spool/cyrus/mail/<first letter of user>/<user>

The extracted textfile (Mailboxlist) of the RedHat system shows the RedHat 
structure.

Is there any simple method to come out of this problem?

regards

Harry