Mailboxes without ID vs. JMAP

[t-vi]

Thank you for maintaining Cyrus IMAPd over all the years!

I have an oldish Cyrus installation (>12 years) in which not all mailboxes had unique ids until now. When enabling JMAP this led to:

• Nonsensical output in mailbox lists (parentId was the empty string),
• crash (segmentation fault) when using filter in Email/query with a filter with inMailbox (as in the JMAP Mail RFC example).

I think dumping and restoring mailboxes with ctl_mboxlist does not help, as it doesn't produce unique ids in mailboxes.

I fixed my installation with mbtool -r '*' to get ids for all mailboxes, but the above might be worth fixing in the code.

[t-vi]

There is more related things: The E-Mails in the folders appear not to be accessible through Email/get if they don't have a the mailbox field filled in and the pre-existing mails don't have that. :/

[elliefm]

Did you follow the upgrade instructions here: https://www.cyrusimap.org/imap/download/upgrade.html, or just install a new distro package in place?

If you haven't already, you'll need to reconstruct -V max each of your mailboxes, and maybe reconstruct -G as well. You can do the entire store at once if you like (it will take a while), but if your store is large you might prefer to do it in batches.