There is no error in the server logs. I checked those particular folders on the server and they don’t seems to have anything special about them, like permission or etc.
Yes, calling STATUS on those particular folders returns the status. The folders can be opened and they have emails in them so nothing special about those folders.
# 2.3.5 (513208660): /etc/dovecot/dovecot.conf
# OS: Linux 3.10.0-957.21.3.el7.x86_64 x86_64 CentOS Linux release 7.6.1810 (Core)
# Hostname: mail.HIDDEN
auth_cache_size = 1 M
auth_mechanisms = plain login
auth_username_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!#$-=?^_{}~./@+%"
disable_plaintext_auth = no
first_valid_uid = 201
lda_mailbox_autocreate = yes
lmtp_rcpt_check_quota = yes
lmtp_save_to_detail_mailbox = yes
lmtp_user_concurrency_limit = 4
mail_access_groups = dovecot
mail_plugins = quota quota_clone zlib fts fts_solr
mail_prefetch_count = 20
maildir_very_dirty_syncs = yes
namespace inbox {
inbox = yes
location =
mailbox Archive {
auto = create
special_use = \Archive
}
mailbox Archives {
auto = no
special_use = \Archive
}
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox "Sent Messages" {
auto = no
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
mailbox spam {
auto = subscribe
special_use = \Junk
}
prefix = INBOX.
separator = .
type = private
}
passdb {
args = /usr/local/cpanel/etc/dovecot/cpauthd-dict.conf
driver = dict
result_failure = return-fail
}
plugin {
acl = vfile:cache_secs=86400
fts = solr
fts_solr = url=http://#hidden_use-P_to_show#@127.0.0.1:8984/solr/dovecot/
quota_exceeded_message = Mailbox is full / Blocks limit exceeded / Inode limit exceeded
}
protocols = lmtp imap pop3
service auth {
unix_listener auth-client {
mode = 0666
}
}
service config {
vsz_limit = 2 G
}
service dict {
unix_listener dict {
group = dovecot
mode = 0660
}
}
service imap-login {
client_limit = 500
inet_listener imap {
address = *,::
}
inet_listener imaps {
address = *,::
}
process_limit = 50
process_min_avail = 2
service_count = 0
vsz_limit = 128 M
}
service imap {
process_limit = 512
vsz_limit = 512 M
}
service lmtp {
client_limit = 1
process_limit = 500
unix_listener lmtp {
group = mail
mode = 0660
user = mailnull
}
vsz_limit = 512 M
}
service managesieve-login {
client_limit = 500
process_limit = 50
process_min_avail = 2
service_count = 0
vsz_limit = 128 M
}
service managesieve {
process_limit = 512
vsz_limit = 512 M
}
service pop3-login {
client_limit = 500
inet_listener pop3 {
address = *,::
}
inet_listener pop3s {
address = *,::
}
process_limit = 50
process_min_avail = 2
service_count = 0
vsz_limit = 128 M
}
service pop3 {
process_limit = 512
vsz_limit = 512 M
}
service quota-status {
executable = quota-status -p postfix
unix_listener quota-status {
mode = 0666
}
}
service stats {
client_limit = 2000
unix_listener stats-writer {
mode = 0666
}
}
ssl_cert = </etc/dovecot/ssl/dovecot.crt
ssl_cipher_list = ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:!DSS
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
userdb {
driver = prefetch
}
userdb {
args = /usr/local/cpanel/etc/dovecot/cpauthd-dict.conf
driver = dict
}
protocol imap {
imap_capability = +NAMESPACE
imap_idle_notify_interval = 24 mins
imap_logout_format = in=%i, out=%o, bytes=%i/%o
mail_max_userip_connections = 20
mail_plugins = acl quota imap_quota zlib imap_zlib quota_clone virtual fts fts_solr
namespace sent {
hidden = yes
list = no
location = virtual:/usr/local/cpanel/etc/dovecot/virtual/sent:INDEX=~/mail/virtual/%u/sent
prefix = sent
separator = .
}
namespace spam {
hidden = yes
list = no
location = virtual:/usr/local/cpanel/etc/dovecot/virtual/spam:INDEX=~/mail/virtual/%u/spam
prefix = spam
separator = .
}
}
protocol pop3 {
mail_max_userip_connections = 3
mail_plugins = quota quota quota_clone virtual zlib
namespace sent {
hidden = yes
list = no
location = virtual:/usr/local/cpanel/etc/dovecot/virtual/sent:INDEX=~/mail/virtual/%u/sent
prefix = sent
separator = .
}
namespace spam {
hidden = yes
list = no
location = virtual:/usr/local/cpanel/etc/dovecot/virtual/spam:INDEX=~/mail/virtual/%u/spam
prefix = spam
separator = .
}
pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, bytes=%i/%o
pop3_uidl_format = UID%u-%v
}
protocol lmtp {
mail_plugins = quota quota_clone zlib
postmaster_address = root
quota_full_tempfail = yes
}
protocol lda {
mail_plugins = quota quota_clone zlib
postmaster_address = root
quota_full_tempfail = yes
}
local_name mail.HIDDEN www.mail.hidden {
ssl_cert = </etc/dovecot/ssl/dovecot.crt
ssl_key = # hidden, use -P to show it
}
local_name *.HIDDEN HIDDEN {
ssl_cert = </var/cpanel/ssl/domain_tls/HIDDEN/combined
ssl_key = # hidden, use -P to show it
}
From: Timo Sirainen <timo@sirainen.com>
Sent: Tuesday, July 16, 2019 10:59 AM
To: Emil Kalchev <ekalchev@hotmail.com>
Cc: Dovecot Mailing List <dovecot@dovecot.org>
Subject: Re: Unexpected result from LIST EXTENDED command
On 16 Jul 2019, at 9.51, Emil Kalchev via dovecot <dovecot@dovecot.org> wrote: