On Tuesday 15 August 2006 13:28, Andrew Richards wrote:
On Friday 11 August 2006 19:24, Andrew Richards wrote:
I've been bitten by an issue running Squirrelmail on top of Dovecot using Maildir++ quotas.
Having configured these quotas in Dovecot, I notice that Dovecot appears not to exclude the 'Trash' folder from its quota calculation (which it should do, according to the Maildir++ spec). Unfortunately this breaks Squirrelmail if I try to delete a message from a close-to-quota mailbox - as per July's thread: "Maildir++ quota - how to handle a full mailbox"
Which unfortunately means that a fairly full mailbox can become 'Wedged' with Dovecot/Squirrelmail in this situation with its owner unable to delete messages if that's the only way they access their mailbox.
I took a look at the source and found the 'Quota exceeded' lines in src/plugins/quota/quota-storage.c but didn't understand it well enough to dive in... except to notice that the 'Trash' folder doesn't appear to get excluded from the calculations.
To reply to my own query:
I've mis-quoted the Maildir++ spec - the Maildir++ Trash folder is ".Trash", which differs from ".INBOX.Trash" - so the latter shouldn't necessarily be excluded from the quota calculation.
I still wanted to get Squirrelmail working (with deleting mails when near/at quota when using Maildir++ quotas), even to the extent that quotas might not be enforced during the Squirrelmail/IMAP session. Therefore I've dug into the source and worked out how to temporarily double the quota during the session (well I think that's the effect of my modification) - I've attached the relevant patch file for this should anyone else be struggling with the same problem - your mileage may vary. This at least gets Squirrelmail working.
I think a good feature to avoid having to do a kludge like this would be to add an option to the quota section of dovecot.conf where the Trash folder could be specified as not counting towards the quota.
Doh, I've just found the following, I should have looked here first:
http://www.squirrelmail.org/wiki/DisableTrashcan
which is a much simpler approach to the same problem.
cheers,
Andrew.