dovecot - Mar 2021 - dovecot.map.index corrupted: Unexpectedly lost INBOX uid=1 map_uid=4726

I had in my archive namespace[1] an INBOX folder and did not really get why it
was there so I deleted it. Now this command generates map index error (doveadm
force-resync does not fix it ;))


[@ ~]# doveadm -o
namespace/4archives/location=mdbox_deleted:/home/mail-archive/testtest/mdbox/Archive
-o
mail_location=mdbox_deleted:/home/mail-archive/testtest/mdbox/Archive:INDEX=/home/archiveindex/testtest/index
mailbox status -u testtest 'messages vsize' 'INBOX'

doveadm(testtest): Error: mdbox map
/home/archiveindex/testtest/index/storage/dovecot.map.index corrupted:
Unexpectedly lost INBOX uid=1 map_uid=4726
doveadm(testtest): Error: Mailbox INBOX: Failed to lookup mailbox status: mdbox
map /home/archiveindex/testtest/index/storage/dovecot.map.index corrupted:
Unexpectedly lost INBOX uid=1 map_uid=4726





[1] 
namespace 4archives {
  disabled = no
  hidden = no
  ignore_on_failure = no
  inbox = no
  list = yes
  location =
mdbox:/home/mail-archive/%u/Archive/:CONTROL=/home/mail-archive/%u/Archive/control:INDEX=/home/archiveindex/%u/index
  mailbox Archive {
    auto = create
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment     driver     special_use = \Archive
  }
  mailbox "Archived mail" {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment     driver     special_use = \Archive
  }
  mailbox "Archived messages" {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment     driver     special_use = \Archive
  }
...
...
  mailbox Archives {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment     driver     special_use = \Archive
  }
  order = 0
  prefix = Archive/
  separator = /
  subscriptions = yes
  type = private
}

> 
> I had in my archive namespace[1] an INBOX folder and did not really get
> why it was there so I deleted it. Now this command generates map index
> error (doveadm force-resync does not fix it ;))
> 
> 
> [@ ~]# doveadm -o namespace/4archives/location=mdbox_deleted:/home/mail-
> archive/testtest/mdbox/Archive -o
> mail_location=mdbox_deleted:/home/mail-
> archive/testtest/mdbox/Archive:INDEX=/home/archiveindex/testtest/index
> mailbox status -u testtest 'messages vsize' 'INBOX'
> 
> doveadm(testtest): Error: mdbox map
> /home/archiveindex/testtest/index/storage/dovecot.map.index corrupted:
> Unexpectedly lost INBOX uid=1 map_uid=4726
> doveadm(testtest): Error: Mailbox INBOX: Failed to lookup mailbox
> status: mdbox map
> /home/archiveindex/testtest/index/storage/dovecot.map.index corrupted:
> Unexpectedly lost INBOX uid=1 map_uid=4726
> 
> 
doveadm purge -u testtest

fixed this