In all fairness, Cyrus is a nightmare. The opaque mail-store was a good idea when performance was an issue for mail servers - nowadays it just gets in the way

In all fairness, Cyrus is a nightmare. The opaque mail-store was a good idea when performance was an issue for mail servers - nowadays it just gets in the way constantly, especially when something breaks. The ACL system has been ridiculously broken for as long as I can remember. You can assign pretty much every letter of the alphabet to a mailbox/user but, for example, you cannot give a user delete permission on a folders content without giving him delete permission to the folder itself. Some ACL flags tend to interact funny with each other and nevermind trying to have users alter permissions (e.g. share folders) through their IMAP client... This is just the tip of the iceberg, I'm honestly surprised someone was still using this dinosaur in production. ;-) That said, moving to Exchange is truly a shame for a tech university. I haven't looked at zimbra and the ilk for a while. Are they still so bad?