[Dovecot] Immutable Maildir (or: "I know drag&drop")

[Michael Renner]

Hi,

I'm 'constantly' (every odd month) faced with users happily dragging around or
(un)subscribing folders in our shared IMAP account. Is there a "clean" way to
prevent users from doing that when having a Maildir?

Unix permissions probably won't cut the slack since setting any Maildir
(sub)directory to readonly (immutable or chmod u-w ) will probably cause dovecot
to hit a wall at high speed sooner or later (lock files, rotated cache/log files)

Got any other ideas?

best regards,
Michael Renner