[Dovecot] Doubt on adding support for new mailbox format

[Armando Adami Zaro]

Hi!

I'm starting to read and play with dovecot since a month ago.
But my mailboxes' format is hashdir, which has been implemented here by
my team. Here:

http://wiki.dovecot.org/MailboxFormat

I've noticed that

"Adding support for new formats for Dovecot isn't very difficult, 
although it can be time consuming. Dovecot exposes a nice and simple API 
which needs to be implemented"

But I couldn't find that API. I've read the documentation so many times 
but have not found. Can you help me?

Thanks a lot!

-- 
Armando Adami Zaro
Canopus Informática Ltda
Porto Alegre - RS - Brasil
+55 51 3062-2404