Here it is:
# 2.2.34 (874deae): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.22 (22940fb7)
# OS: Linux 4.4.127 x86_64 Debian 9.4 ext3
# Hostname: server00
auth_master_user_separator = *
auth_mechanisms = plain login
default_client_limit = 30000
default_process_limit = 6000
default_vsz_limit = 512 M
disable_plaintext_auth = no
first_valid_uid = 100
lda_original_recipient_header = X-Original-To
lmtp_proxy = yes
login_greeting =
mail_fsync = never
mail_gid = mail
mail_location = maildir:/var/mail/vhosts/%d/%n:INDEX=/dovecot_indexes/%d/%n
mail_plugins = acl mailbox_alias fts fts_solr stats mail_log notify
mail_uid = postfix
mailbox_list_index = yes
mailbox_list_index_very_dirty_syncs = yes
namespace {
list = children
location = maildir:/var/mail/vhosts/%%d/%%n:INDEX=/dovecot_indexes/%%d/%%n
prefix = INBOX/Shared/%%u/
separator = /
subscriptions = no
type = shared
}
namespace inbox {
inbox = yes
list = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
autoexpunge = 30 days
special_use = \Junk
}
mailbox Karantena {
autoexpunge = 30 days
}
mailbox Kos {
autoexpunge = 180 days
special_use = \Trash
}
mailbox Odoslane {
special_use = \Sent
}
mailbox Rozpisane {
special_use = \Drafts
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Spam {
autoexpunge = 30 days
special_use = \Junk
}
mailbox Trash {
autoexpunge = 180 days
special_use = \Trash
}
prefix = INBOX/
separator = /
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 = file:/var/lib/dovecot/shared/shared-mailboxes
fts = solr
fts_autoindex = yes
fts_autoindex_max_recent_msgs = 1000
fts_solr = url=http://127.0.0.1:8080/solr/
mail_log_events = delete expunge
mail_log_fields = from subject
sieve = ~/.dovecot.sieve
sieve_after = /etc/dovecot/sieve-after
sieve_before = /etc/dovecot/sieve-before
sieve_dir = ~/sieve
sieve_extensions = +vacation-seconds
sieve_vacation_min_period = 0
stats_command_min_time = 1 mins
stats_domain_min_time = 12 hours
stats_ip_min_time = 12 hours
stats_memory_limit = 16 M
stats_refresh = 5s
stats_session_min_time = 15 mins
stats_track_cmds = yes
stats_user_min_time = 1 hours
}
protocols = " imap lmtp pop3"
service auth-worker {
user = $default_internal_user
}
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
}
service dict {
unix_listener dict {
user = postfix
}
}
service imap-login {
process_min_avail = 20
}
service imap {
executable = imap postlogin
process_limit = 3072
vsz_limit = 400 M
}
service indexer-worker {
process_limit = 3
}
service lmtp {
inet_listener lmtp {
address = 127.0.0.1
port = 24
}
process_min_avail = 15
unix_listener /var/spool/postfix-remote/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
}
service pop3 {
executable = pop3 postlogin
process_limit = 2048
}
service postlogin {
executable = script-login /etc/dovecot/scripts/post-login-password.sh
user = $default_internal_user
}
service stats {
fifo_listener stats-mail {
mode = 0666
}
}
ssl_cert = </etc/certs/<censored>/<censored>/server.pem
ssl_cipher_list = HIGH:!SSLv2:!aNULL@STRENGTH
ssl_dh_parameters_length = 2048
ssl_key = # hidden, use -P to show it
ssl_prefer_server_ciphers = yes
syslog_facility = local0
userdb {
args = home=/var/mail/vhosts/%d/%n/home master_user=%u
driver = static
override_fields = plain_pass=%w
}
verbose_proctitle = yes
protocol lmtp {
mail_fsync = optimized
mail_plugins = acl mailbox_alias fts fts_solr stats mail_log notify sieve
}
protocol lda {
mail_fsync = optimized
}
protocol imap {
mail_max_userip_connections = 20
mail_plugins = acl mailbox_alias fts fts_solr stats mail_log notify
imap_acl imap_stats
}
protocol pop3 {
mail_max_userip_connections = 20
mail_plugins = acl mailbox_alias fts fts_solr stats mail_log notify
pop3_fast_size_lookups = yes
}
Citát Sami Ketola <sami.ket...@dovecot.fi>:
Hi,
please post your doveconf -n
Sami
On 16 Apr 2018, at 20.17, azu...@pobox.sk wrote:
Hi,
today we have exceprienced really major difficulties with our proxy
backend servers. Everything started after enabling auth cache:
auth_cache_size = 100M
auth_cache_verify_password_with_worker = yes
auth_cache_ttl = 1 hour
auth_cache_negative_ttl = 1 hour
Soon after we start receiving lots of calls from our customers
about 'missing all e-mail messages'. This was in errors logs on
master server:
Apr 16 14:37:10 server00 dovecot: imap(<censored_email_address>):
Error: autoexpunge: Couldn't create dovecot.autoexpunge.lock lock:
file_create_locked(/var/mail/vhosts/<censored_domain>/<censored_name>/home/dovecot.autoexpunge.lock) failed: safe_mkstemp(/var/mail/vhosts/<censored_domain>/<censored_name>/home/dovecot.autoexpunge.lock) failed: No such file or
directory
Looks like that all users, who are placed on proxy backends, were
logged correctly BUT not proxied to the right server so they saw
empty mailboxes (Dovecot also created some directories on master
server). What is worse, their email software deleted all local
emails so they are now downloading everything from scratch (100Gs
of mails so it will take some time).
After auth cache was disabled, things started to go to normal
EXCEPT users were reporting they don't see all folders - which was
true, only few on them were visible (INBOX, trash, sent etc.). We
tried everything to make them visible again, for example deleting
indexes, but nothing helped. Finally, removing option ITERINDEX
from mail_location helped.
Can anyone explain what happened? Thank you
azurIt
