[Dovecot] Archiving feature

[Romer Ventura]

It would be nice to have some sort of archiving feature on which  
dovecot can save emails older than N+1 months to either a remote  
Dovecot server with MySQL as storage or a separate instance of  
Dovecot running on the same server but storing the emails in MySQL

Is any of this possible now, or in the works...?
Thanks