Ok, if you ever had the experience of filling up the
hard drive of your Courier IMAP server, you probably
know that once the disk gets filled, the server doesn't
allow users to access their mailboxes anymore.
This is quite an undesirable effect, considering that
by using file system quotas it is quite easy to ``fill
up the disk'' for a given user.
The problem has been reported upstream, but it seems
like it is not such a big deal and is worth no considerations
by the authors.
Since we often use file system quotas (for many good
reasons) and since it was kind of an annoying and dangerous
problem for a production system, we worked out a couple patches:
Remember to specify the option IMAP_USELOCKS=0 in your imap configuration file.
The patch has been tested on production system since courier 0.42 up to 0.47.
To apply the patch, just run ``patch -p1 < file.diff'' from the directory
where you decompressed your courier sources.