Cliff Hayes <chayes@afo.net> writes:

I recently had a user whose mailbox had gone out of sync. Webmail and client inbox totals had become vastly different and response times had become unacceptable. A doveadm force-resync fixed the problem nicely.

This will no doubt happen again as we grow the service and I would like to have some type of indication at the server level so I can run a resync on a per-user basis as required.

Perhaps what you ought to look for is how are they getting out of sync in the first place. Assuming your webmail is a IMAP/POP client, I would look at ways that your user's INBOX can be modified out of Dovecot's sight. For example, does your LDA use dovecot's lda/lmtp, or do your users run mail clients that directly manipulate mailbox files, or do you use procmail/mail filters?

By closing off other avenues other than dovecot imap/pop/lda/etc., the indices will stay sync'd.

If you really have to do manual resyncing, comparing index/mailbox mtimes might be one way to do it.

Joseph Tam <jtam.home@gmail.com>