Current state

As for now, mail-mboxparser provides two objects and a number of essential methods:
MboxParser->new, MboxParser->open, MboxParser->nmsgs and MboxParser->get_messages.
get-messages returns the list of messages in the mailbox each represented by a Mail-object. Access to this can be done through Mail->header, Mail->body, Mail->id and Mail->from. The message-id and from field could also be retrieved using the hash returned by Mail->header but the explicit id and from call return the data converted in a more convenient way.
Once having finished the mime handling and made it CPAN-compatible (along with docs), a first release will be available.