dovecot - Mar 2021 - Dovecot 2.3.14 - Invalid mailbox name: Name must not have '/'

> On 03/30/2021 8:25 PM J?rgen Edner <juergen at eisfair.org> wrote:
> Hi @all, 
>  can anyone please shed some light on the changes of v2.3.14 and what need
to be done to get the shared folders working again as in v2.3.13.
>  I cannot see any invalid characters in the folder names. I would also
appreciate any advise on how I can debug the program any further.
Hi,

can you provide us with the output of `doveconf -n` please? 

Markus

Hi Markus,
>> Hi @all, 
>>  can anyone please shed some light on the changes of v2.3.14 and what
need to be done to get the shared folders working again as in v2.3.13.
>>  I cannot see any invalid characters in the folder names. I would also
appreciate any advise on how I can debug the program any further.
> 
> Hi,
> 
> can you provide us with the output of `doveconf -n` please? 
attached you will find the desired command output.

Thanks
Juergen

-- 
Mail: juergen at eisfair.org
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# 2.3.14 (cee3cbc0d): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.14 (1b5c82b2)
# OS: Linux 4.9.261-eisfair-64-VIRT x86_64  
# Hostname: farragut.privatnet.lan
auth_mechanisms = plain login cram-md5
base_dir = /run/dovecot
default_internal_group = trusted
default_internal_user = exim
default_login_user = exim
listen = *,
log_path = /var/log/dovecot.log
mail_location = maildir:~/.imapmail
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy
include variables body enotify environment mailbox date index ihave duplicate
mime foreverypart extracttext
namespace {
  location = maildir:/home/imappublic:INDEXPVT=~/.imapmail/public
  prefix = "#Public/"
  separator = /
  subscriptions = no
  type = public
}
namespace {
  location = maildir:/home/imapshared:INDEXPVT=~/.imapmail/shared
  prefix = "#Shared/"
  separator = /
  subscriptions = no
  type = shared
}
namespace inbox {
  inbox = yes
  location = 
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Spam {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix = 
  separator = /
  type = private
}
passdb {
  args = scheme=cram-md5 /etc/cram-md5.pwd
  driver = passwd-file
}
plugin {
  mail_log_fields = uid box msgid size from
  sieve = file:~/sieve;active=~/.dovecot.sieve
}
pop3_uidl_format = %08Xv%08Xu
protocols = pop3 imap
service auth {
  unix_listener auth-exim {
    group = trusted
    mode = 0600
    user = exim
  }
}
service imap-login {
  inet_listener imap {
    port = 143
  }
  inet_listener imaps {
    port = 993
    ssl = yes
  }
}
service pop3-login {
  inet_listener pop3 {
    port = 110
  }
  inet_listener pop3s {
    port = 995
    ssl = yes
  }
}
service submission-login {
  inet_listener submission {
    port = 587
  }
}
ssl_cert = </var/certs/ssl/certs/server.pem
ssl_cipher_list = ALL:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW
at STRENGTH
ssl_client_ca_dir = /usr/local/ssl/certs
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
ssl_min_protocol = TLSv1.2
ssl_options = no_compression
ssl_prefer_server_ciphers = yes
userdb {
  driver = passwd
}
protocol imap {
  mail_max_userip_connections = 15
  mail_plugins = " listescape"
}
protocol pop3 {
  mail_max_userip_connections = 15
  mail_plugins = " listescape"
}