Problem with master password

28 Dec 2017


      Hi,
I have a problem using the master password feature of dovecot.
I'm able to login with the password but then dovecot can't select the INBOX.
IMAP test:

OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=SCRAM-SHA-1
AUTH=CRAM-MD5] ITronic Mail Store

a login user@itronic.at*admin password
a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS
THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN
NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH
ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE NOTIFY
QUOTA ACL RIGHTS=texk] Logged in
a list "" "%"

LIST (\HasNoChildren) "/" INBOX

a OK List completed (0.003 + 0.000 + 0.003 secs).
a select INBOX
a NO [SERVERBUG] Internal error occurred. Refer to server log for more
information. [2017-12-28 12:32:41] (0.001 + 0.000 secs).
The log with mail debuging doesn't tell me much:
2017-12-28T12:24:47+01:00 mailstore1 dovecot: imap(user@itronic.at):
Debug: INBOX: Mailbox opened because: SELECT
2017-12-28T12:24:47+01:00 mailstore1 dovecot: imap(user@itronic.at):
Debug: acl vfile: file
/srv/storage1/vmail/itronic/6/mdbox/mailboxes/INBOX/dbox-Mails/dovecot-acl
not found
2017-12-28T12:24:47+01:00 mailstore1 dovecot: imap(user@itronic.at):
Debug: acl vfile: file
/srv/storage1/vmail/itronic/6/mdbox/mailboxes/dovecot-acl not found
2017-12-28T12:24:47+01:00 mailstore1 dovecot: imap(user@itronic.at):
Debug: Namespace : Using permissions from
/srv/storage1/vmail/itronic/6/mdbox: mode=0700 gid=default
2017-12-28T12:24:47+01:00 mailstore1 dovecot: imap(user@itronic.at):
Error: Opening INBOX failed: Mailbox doesn't exist: INBOX
If I use the password of the user it works without problems, I also
tested other users, they have the same problem.
dovecot -n
# 2.2.devel (5af0c9f): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.devel (6c95b56)
# OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.10
auth_cache_negative_ttl = 1 secs
auth_cache_size = 10 M
auth_cache_ttl = 1 secs
auth_master_user_separator = *
auth_mechanisms = PLAIN LOGIN DIGEST-MD5 SCRAM-SHA-1 CRAM-MD5 APOP
auth_verbose = yes
default_client_limit = 600
default_vsz_limit = 512 M
dict {
lastlogin = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
sqlacl = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
}
disable_plaintext_auth = no
first_valid_gid = 1001
first_valid_uid = 1001
hostname = mailstore1@itronic.at
imap_hibernate_timeout = 1 mins
imap_id_log = *
imap_id_send = *
imap_idle_notify_interval = 10 mins
imap_logout_format = bytes=%i/%o
instance_name = mailstore1
last_valid_gid = 1001
last_valid_uid = 1001
lda_original_recipient_header = X-LDA-Original-To
lmtp_rcpt_check_quota = yes
login_greeting = ITronic Mail Store
login_trusted_networks = x.y.z.0/24
mail_attachment_dir = /srv/storage1/vmail_sis
mail_attachment_hash = %{sha512}
mail_attachment_min_size = 64 k
mail_cache_min_mail_count = 5
mail_gid = vmail
mail_location = mdbox:~/mdbox
mail_plugins = zlib lazy_expunge stats acl quota mail_log notify
mail_prefetch_count = 100
mail_server_admin = mailto:postmaster@itronic.at
mail_server_comment = ITronic Mail System
mail_shared_explicit_inbox = yes
mail_uid = vmail
mailbox_list_index = yes
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 vacation-seconds
mdbox_preallocate_space = yes
namespace {
hidden = yes
list = no
location =
mdbox:~/mdbox:MAILBOXDIR=expunged:LISTINDEX=expunged.list.index
prefix = "#EXPUNGED/"
subscriptions = no
type = private
}
namespace {
list = children
location = mdbox:%%h/mdbox
prefix = "#Users/%%u/"
separator = /
subscriptions = yes
type = shared
}
namespace inbox {
hidden = no
inbox = yes
location =
mailbox Archvie {
special_use = \Archive
}
mailbox Drafts {
special_use = \Drafts
}
mailbox Sent {
special_use = \Sent
}
mailbox Spam {
special_use = \Junk
}
mailbox Trash {
special_use = \Trash
}
prefix =
separator = /
subscriptions = yes
type = private
}
passdb {
args = /etc/dovecot/master-users
driver = passwd-file
master = yes
pass = yes
}
passdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
plugin {
acl = vfile
acl_shared_dict = proxy::sqlacl
last_login_dict = proxy::lastlogin
last_login_key = last-login/%u
lazy_expunge = "#EXPUNGED/"
lazy_expunge_only_last_instance = no
mail_log_events = delete undelete expunge copy mailbox_delete
mailbox_rename flag_change save mailbox_create
mail_log_fields = uid box msgid size flags vsize from subject
quota = dict:User quota::proxy::sqlquota
quota_grace = 10%%
quota_rule = *:storage=1024M
quota_rule2 = "#EXPUNGED:storage=+1024M"
quota_warning = storage=100%% quota-warning 100 %u
quota_warning2 = storage=95%% quota-warning 95 %u
quota_warning3 = storage=80%% quota-warning 80 %u
recipient_delimiter = +
sieve = file:~/sieve;active=~/.dovecot.sieve
sieve_before = file:/srv/storage1/vmail/%{userdb:accountToken}/
sieve_extensions = +vacation-seconds
sieve_global = /etc/dovecot/sieve
sieve_max_actions = 64
sieve_max_redirects = 8
sieve_max_script_size = 2M
sieve_quota_max_scripts = 0
sieve_quota_max_storage = 64M
sieve_vacation_default_period = 1d
sieve_vacation_min_period = 1h
stats_refresh = 30 secs
stats_track_cmds = yes
zlib_save = gz
zlib_save_level = 6
}
pop3_uidl_duplicates = rename
protocols = imap lmtp sieve pop3
service auth-worker {
user = $default_internal_user
}
service auth {
inet_listener {
port = 4180
}
unix_listener auth-userdb {
mode = 0666
}
}
service dict {
unix_listener dict {
group = vmail
mode = 0666
}
}
service imap-hibernate {
unix_listener imap-hibernate {
group = vmail
mode = 0666
}
}
service imap-login {
inet_listener imap {
port = 143
}
inet_listener imaps {
port = 993
ssl = yes
}
process_min_avail = 1
service_count = 0
}
service imap {
process_limit = 1024
unix_listener imap-master {
user = dovecot
}
unix_listener imap {
group = vmail
mode = 0666
}
vsz_limit = 512 M
}
service lmtp {
inet_listener lmtp {
address = x.y.z.135
port = 24000
}
unix_listener lmtp {
mode = 0666
}
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
process_min_avail = 0
service_count = 1
vsz_limit = 64 M
}
service managesieve {
process_limit = 50
}
service pop3-login {
inet_listener pop3 {
port = 110
}
inet_listener pop3s {
port = 995
ssl = yes
}
process_min_avail = 20
service_count = 1
vsz_limit = 64 M
}
service pop3 {
process_limit = 1024
}
service quota-warning {
executable = script /opt/scripts/quota-warning.sh
unix_listener quota-warning {
user = vmail
}
user = dovecot
}
service stats {
fifo_listener stats-mail {
mode = 0600
user = vmail
}
}
shutdown_clients = no
ssl_cert = </etc/dovecot/private/STAR.itronic.at.pem
ssl_cipher_list =
ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA:AES256-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-RSA-CAMELLIA256-SHA:CAMELLIA128-SHA:CAMELLIA256-SHA:ECDHE-RSA-DES-CBC3-SHA:DES-CBC3-SHA
ssl_dh_parameters_length = 2048
ssl_key =  # hidden, use -P to show it
ssl_options = no_compression
ssl_prefer_server_ciphers = yes
ssl_protocols = !SSLv2 !SSLv3
submission_host = x.y.z.198
syslog_facility = local0
userdb {
driver = prefetch
}
userdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
valid_chroot_dirs = /srv/storage1/vmail
verbose_proctitle = yes
protocol imap {
mail_max_userip_connections = 30
mail_plugins = zlib lazy_expunge stats imap_stats quota imap_quota
acl imap_acl last_login mail_log notify
}
protocol lda {
mail_plugins = zlib lazy_expunge stats acl sieve quota mail_log notify
}
protocol lmtp {
mail_plugins = zlib lazy_expunge stats acl sieve quota mail_log notify
}
protocol sieve {
mail_max_userip_connections = 10
managesieve_max_compile_errors = 5
managesieve_max_line_length = 65536
}
protocol pop3 {
mail_max_userip_connections = 10
mail_plugins = zlib lazy_expunge stats acl last_login mail_log notify
}

I would be happy for any debugging help.
thx
--
Harald Leithner
ITronic
Wiedner Hauptstraße 120/5.1, 1050 Wien, Austria
Tel: +43-1-545 0 604
Mobil: +43-699-123 78 4 78
Mail: leithner@itronic.at | itronic.at