I have just spent ~4hrs trying to recover 155 users. According to the debian changelog (see e.g. https://sources.debian.org/patches/cyrus-imapd/3.2.6-2+deb11u2/ , last entry) the package should have the patches required for a transition to 3.6. Luckily I could "recover" by downgrading to 3.2 again.
So i have: * UniqeId in mailbox.db and cyrus.header * MinorVersion of 12 * all mails have GUID != 0 * No error or crash runing ctl_cyrusdb -r on 3.6 And yet, after the upgrade to 3.6 the mailboxes from 3.2 seem to live a separate life in mailboxes.db. 3.6 does not recognize them, I cannot use reconstruct -P because there are no mailbox-ids attached to the mailboxes. ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/Ta01e6935b46972c7-M09a5ae362fb08f732da4d4dc Delivery options: https://cyrus.topicbox.com/groups/info/subscription
