I recently upgraded the cyrus-imapd service on a heavily used internal IMAP server from version *2.4.17* (specifically, version *cyrus-imapd-2.4.17-15.el7.ppc64le* via standard RHEL7 package management) to version *3.0.7* (version *cyrus-imapd-3.0.7-24.el8.ppc64le* via standard RHEL8 package management). After the upgrade (and a full "reconstruct -r -G -V max" for all mailboxes) my users are unable to synchronize any mailboxes other than "INBOX" using tools such as *mbsync* or *mutt*, and the *Settings* -> *Folders* facility of Roundcube <https://roundcube.net/> will only show the "INBOX" and no other folders.
I have found that when connecting to the *imaps* service on port 993 using the *openssl* client and using raw IMAP commands to interact with the service as follows: openssl s_client -connect imap-host.example.domain.com:993 -crlf -quiet then logging in and issuing a simple *LIST* command (as described by the IMAP RFC <https://datatracker.ietf.org/doc/rfc9051/>), the output only shows the INBOX and claims that is "HasNoChildren": . list "" * * LIST (\HasNoChildren) "." INBOX . OK Completed (0.000 secs 1 calls) whereas the old IMAP server running version *2.4.17* gives output that seems to reflect why they are now complaining: . list "" * * LIST (\HasChildren) "." INBOX * LIST (\HasNoChildren) "." Drafts * LIST (\HasChildren) "." "Junk Mail" * LIST (\HasNoChildren) "." "Junk Mail.Learn as HAM" * LIST (\HasNoChildren) "." "Junk Mail.Learn as SPAM" * LIST (\HasNoChildren) "." Sent * LIST (\HasNoChildren) "." Trash . OK Completed (0.000 secs 8 calls) Why does the new version assign the "HasNoChildren" attribute while the old version shows "HasChildren", and how do I fix this? Yes, I have installed the latest stable version (cyrus-imapd-3.8.3) on a test server (which is quite painful since I have to build it and there are no SystemD init scripts; we much prefer to use standard operating system packages) and verified that there is no change in behavior. ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/T8814f078026d7b10-M19e7299909047002c4cd1b69 Delivery options: https://cyrus.topicbox.com/groups/info/subscription
