On Mon, Sep 9, 2019 at 8:57 PM Niels Kobschätzki via dovecot <dovecot@dovecot.org> wrote:
On 9/9/19 6:18 PM, @lbutlr via dovecot wrote:
> On 9 Sep 2019, at 09:27, Niels Kobschätzki <niels@kobschaetzki.net> wrote:
>> The moment I remove those folders, the size gets calculated correctly. Unfortunately those folders are generated by some clients automatically afaik (like .INBOX.Trash)
>> That sounds like a misconfiguration of the IMAP client. Someone has
gone in and improperly set INBOX as the IMAP path Prefix in their MUA.

The thing is that it worked before. Even when the user misconfigured
their client in such a way, the quota-plugin shouldn't just throw some
dice to get to a arbitrarily high quota the user has used instead of the
right amount.

> I used to have this problem with some users until I implemented repeated and consistent application of a clue bat.

Some users is in my case (as far as I guess) like 0.5%

> I don’t know of a server-side setting to prevent users from screwing up this setting, but maybe?

Wouldn't that break existing accounts?


Does it sound like this? https://www.dovecot.nl/pipermail/dovecot/2019-March/115214.html

If so, in a direct email, Timo suggested using the 'count' quota (instead of the Maildir++ quota). I've not yet been able to test that to verify, due to the large amount of mailboxes and the reliance on maildirsize file for some of our tools.