Ok, I have seen that many people have improved the performance migrating from 'courier' to 'dovecot' because 'dovecot' has indexing for search. I'm studying migration. Do you know if 'dovecot' uses the same structure maildir as 'courier' with folders 'cur', 'new', etc? I need to migrate mailboxes (/var/vmail/*) with a 'dovecot' script in Perl but I have plugins that uses courier maildir references.
Thanks anyway!