[Dovecot] index synchronization during local delivery

Hi there,

Now our system will take dovecot as the whole imap back end, and keep the LDA of ours, But our system has our own UID generation mechanism (in dovecot it's incremental from 1), which will be done while local delivery, So when local deliveries, it will first generate the UID, move the mail into maildir, then synchronize the mailbox index, which is part of dovecot LDA does. The question is what API or something else about index synchronization I can integrate into our own LDA program easily? Seems mailbox_copy() would be the possibility?

Thanks.