Help undeleting a user's INBOX

[Mikhail T.]

The thunderbird view of a user's mailbox tree had a mysterious nameless 
subfolder. Because the subfolder was showing empty, I instructed the 
user to just delete it through the mail program, which he did.

Now his INBOX itself is empty and the server logs has the following entries:

    May 24 14:44:44 narawntapu imap[19976]: Expunged 16808 messages from
    user.foo
    May 24 14:45:04 narawntapu imap[21788]: Deleted mailbox user.foo.

All the messages -- including the new spam -- are still right here on 
the filesystem, in /var/spool/imap/user/foo. However, reconstruct does 
not seem to do anything -- it exits without an obvious error, but the 
INBOX remains empty. For example, after running "reconstruct -G 
user/foo", I got the following:

    May 24 16:34:57 narawntapu reconstruct[25444]: reconstructing user.foo
    May 24 16:36:12 narawntapu reconstruct[25444]: user.foo uid 55067
    record mismatch, rewriting
    May 24 16:36:12 narawntapu reconstruct[25444]: user.foo uid 55069
    record mismatch, rewriting
    May 24 16:36:55 narawntapu reconstruct[25444]: mailbox: longlock
    user.foo for 117.4 seconds

Unfortunately, thunderbird is still not showing anything. Other folders 
exist, but not the INBOX itself...

I have the backup of the entire /var/spool/imap from last night, but it 
does not seem, like I need to recover the messages -- they are still 
here on the filesystem -- it is something else, is not it?

The server runs FreeBSD-11.3, and cyrus-imapd-2.5.15... Thank you. Yours,

    -mi




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