Here is a concise follow-up (in English) that you can post to your forum thread, summarizing your latest findings and technical observations:
After further testing, the situation has become even stranger: 1. I restored the old backend (oldbackend, version 3.0.8-6) alongside backend1 (version 3.10.2-1), with both frontend and cyrmaster still running version 3.10.2-1. - Mail clients have full access to data stored on oldbackend through the new frontend—everything works as expected. - However, accounts managed by backend1 continue to show the previously described errors (e.g., frontend console commands for mailbox management returning "Mailbox does not exist" etc.). 2. Intriguingly, when configuring my mail client to connect directly to backend1 (bypassing the Murder frontend), all account operations work flawlessly—including folder creation and message movement. 3. During investigation, I observed a structural difference in mailbox storage between the two backends: - backend1 (3.10.2-1) uses a new-style folder layout under `/var/spool/cyrus/mail/uuid/...` with "uniqueid" attributes for every folder in the `ctl_mboxlist -d` output. - oldbackend (3.0.8-6) uses traditional directory names (`/var/spool/cyrus/mail/[a-z]/user/...`) with no "uniqueid" attributes. 4. Notably, even though both frontend and cyrmaster are running the same 3.10.2-1 version as backend1, the "uniqueid" attributes present in backend1's `ctl_mboxlist -d` output do not appear when dumping the mailbox list on the frontend or the master. Hypothesis: It appears that the missing "uniqueid" data on the frontend and cyrmaster may be causing the Murder frontend to malfunction when handling mailboxes managed by the new backend. Curiously, connecting through the frontend to the old backend (using the legacy folder format and no "uniqueid") works perfectly—even with the new frontend and master versions. This suggests a possible issue with how "uniqueid" metadata is propagated or handled in this Murder deployment, despite all key servers being on the same software version. Any insight into how "uniqueid" handling might affect mailbox proxying or management in this context, or whether there are additional steps to synchronize or migrate this metadata properly, would be greatly appreciated. ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/T9464474cb66a6f4a-Mf6967a2341f2ab15056ec9af Delivery options: https://cyrus.topicbox.com/groups/info/subscription
