On Tue, Jul 04, 2006 at 09:29:41AM +0200, Adrian Snyman wrote:
> We have migrated the majority of our users (250) onto
> a single mailserver with postfix/courier-imap
Version of courier-imap? Obtained from where, or compiled with which
options? Are people using IMAP directly, or is there a webmail frontend? Are
most of your users using the same IMAP client, and if so, what is it?
> However, there is a strange problem that appears under load ...
> People lose their folders .. they are still subscribed, but they are missing
> in their folder list ..
> I then go into the folder with the problem, delete the file "courierimapacl",
> and voila .. they become visible again ...
If this is repeatable, and you are running current code, then you could help
When a folder is in this state, take a look at the file permissions:
# ls -l courierimapacl
Then 'mv' the file to another location, gzip it, and then post it here as an
attachment. Then we can look to see if its contents make sense.
Also - once you've deleted courierimapacl and the user logs in again, does a
new courierimapacl get created? If so, what does it contain?
If courierimapacl is corrupt, that's one thing. If it contains a valid ACL
which is preventing users from seeing their own folders, then I guess we
need to determine whether a client has actually requested the ACL change, or
if not, how it has become changed.