Undeletable mailboxes

[thomas.hofmann at post.ch]

Hi

I have to maintain a dovcot installation where users may access there mails through IMAPS and/or via self-developed portal.
>From time to time users complain about mailboxes showing up they have deleted bevor.
The only way to get these mailboxes away is to do a backup of the user and delete dovecot home of the user and do a selective restore.

hostname:~ # doveadm mailbox list -u $u -s 'INBOX/01_OHO/*'
hostname:~ # doveadm mailbox list -u $u 'INBOX/01_OHO/*'
INBOX/01_OHO/02_Orchestermatinée 10.01.16
hostname:~ # doveadm mailbox delete -u $u 'INBOX/01_OHO/02_Orchestermatinée 10.01.16'
doveadm(username at domain.com): Info: Mailbox deleted: INBOX/01_OHO/02_Orchestermatinée 10.01.16
hostname:~ # doveadm mailbox list -u $u 'INBOX/01_OHO/*'
INBOX/01_OHO/02_Orchestermatinée 10.01.16
hostname:~ # doveadm -v purge -u $u
hostname:~ # doveadm mailbox list -u $u 'INBOX/01_OHO/*'
INBOX/01_OHO/02_Orchestermatinée 10.01.16
hostname:~ # doveadm mailbox metadata list -u $u 'INBOX/01_OHO/02_Orchestermatinée 10.01.16'
doveadm(username at domain.com): Error: Failed to open mailbox: Mailbox doesn't exist: INBOX/01_OHO/02_Orchestermatinée 10.01.16
hostname:~ #
hostname:~ # dovecot --version
2.2.21 (5345f22)
hostname:~ #

Is there another (simpler) way to rid of these "deleted" mailboxes?

Thanks for any help!

Regards
Thom