Hi! So we wanted to make our old Cyrus IMAP server a read-only archive for a period. I thought that'd be child's play using Cyrus's great ACL's, ie. change the permissions on INBOX and everything below that to 'lr' for the user. But for some reason, a user can still create subfolders to the INBOX and other folders below the INBOX (while not being able to delete the subfolders). Googling on it, I found one exchange on this list, from the year 2010: https://lists.andrew.cmu.edu/pipermail/info-cyrus/2010-June/033125.html The answer claims that the user will have implicit 'l' and 'a' rights on their personal mailbox, referring to a link that's become stale since. Now, there are two problems with that answer: 1) It doesn't answer the question: 'l' and 'a' rights don't give the user a right to create a subfolder unless they explicitely give themselves that right using the implicit 'a' right; and 2) at least in the current version of Cyrus, it appears that if the user doesn't have the explicit 'a' right, they can't give themselves any new rights to their INBOX, so the implicit 'a' right doesn't exist - at least, not anymore. Apparently, I'm not the only administrator with this particular problem with a reasonably current version of Cyrus. This one is from somebody running 2.4.18, three months ago: https://stackoverflow.com/questions/37749083/cyrus-permissions-to-disallow-folder-creation-deletion I'm running 2.4.17. And I've set the permissions on my test user's INBOX to 'lr' for the user. Any ideas? Yours, Janne Peltonen Email Admin University of Helsinki ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus