2. The user not only must have a quota set, but the maildirsize file *must* exist and must have at least one entry beyond the quota setting at the top. Not sure why that last point is, but I discovered that if the file exists, but has no entries for message/size counts, courier-imap will not send a STORAGE response. Here's an example of a successfull IMAP conversation that you can use to determine that courier is giving you a correct STORAGE response. (this MUST work before you even try the quota plugin).
maildirsize? never heard about it, where is must be and what is its contains?
http://inter7.com/courierimap/README.maildirquota.html
Bill
