Timo Sirainen writes in response to Steve Fatula's query:
With imap_quota plugin it allows IMAP client to see how much quota is used/left. You could also enable quota warnings. And configure the quota exceeded error message.
It could also prevent the catch-22 situation I wrote about earlier whereby a filesystem out-of-space condition will result in a user not being able get themselves out of that situation, since a mailbox operation (like a delete and expunge) will not be able to create a lockfile. Having quotas handled by the IMAP/LDA will allow extra room to handle this impasse. Disabling dotlock or using dotlock_try locking method are some other workarounds. Joseph Tam <jtam.h...@gmail.com>
