BUG: Mailbox renaming algorithm got into a potentially infinite loop, aborting

Alex Ha
2019-09-25T15:03:38Z

Hi all!

I have two dovecot servers with dsync replication over tcp.
Replication works fine except for one user.

# doveadm replicator status
username
priority fast sync full sync success sync failed
customer at example.com
none     00:00:33  07:03:23  03:22:31     y

If i run dsync manually, i get the following error message:

dsync-local(customer at example.com): Debug: brain M: -- Mailbox renamed,
restart sync --
dsync-local(customer at example.com): Error: BUG: Mailbox renaming algorithm
got into a potentially infinite loop, aborting
dsync-local(customer at example.com): Error: Mailbox INBOX.Foldername sync:
mailbox_rename failed: Invalid mailbox name 'Foldername-temp-1': Missing
namespace prefix 'INBOX.'

For more info see the attached sync_loop.log

Thanks for your help,

Alex
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# 2.2.36.4 (baf9232c1): /etc/opt/dovecot22/dovecot/dovecot.conf
# Pigeonhole version 0.4.24.2 (aaba65b7)
# OS: Linux 4.15.0-20-generic x86_64 Ubuntu 18.04 LTS
# Hostname: mb1m-m.example.com
# NOTE: Send doveconf -n output instead when asking for help.
auth_anonymous_username = anonymous
auth_cache_negative_ttl = 1 hours
auth_cache_size = 0
auth_cache_ttl = 1 hours
auth_cache_verify_password_with_worker = no
auth_debug = no
auth_debug_passwords = no
auth_default_realm = default.local
auth_failure_delay = 2 secs
auth_gssapi_hostname =
auth_krb5_keytab =
auth_master_user_separator =
auth_mechanisms = plain login
auth_policy_check_after_auth = yes
auth_policy_check_before_auth = yes
auth_policy_hash_mech = sha256
auth_policy_hash_nonce =
auth_policy_hash_truncate = 12
auth_policy_reject_on_fail = no
auth_policy_report_after_auth = yes
auth_policy_request_attributes = login=%{requested_username}
pwhash=%{hashed_password} remote=%{rip} device_id=%{client_id} protocol=%s
auth_policy_server_api_header =
auth_policy_server_timeout_msecs = 2000
auth_policy_server_url =
auth_proxy_self =
auth_realms =
auth_socket_path = auth-userdb
auth_ssl_require_client_cert = no
auth_ssl_username_from_cert = no
auth_stats = no
auth_use_winbind = no
auth_username_chars =
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_+@
auth_username_format = %Lu
auth_username_translation =
auth_verbose = yes
auth_verbose_passwords = no
auth_winbind_helper_path = /usr/bin/ntlm_auth
auth_worker_max_count = 30
base_dir = /run/dovecot22
config_cache_size = 1 M
debug_log_path =
default_client_limit = 4000
default_idle_kill = 1 mins
default_internal_user = dovecot
default_login_user = dovenull
default_process_limit = 2000
default_vsz_limit = 256 M
deliver_log_format = msgid=%m: %$
dict_db_config =
director_consistent_hashing = no
director_doveadm_port = 0
director_flush_socket =
director_mail_servers =
director_max_parallel_kicks = 100
director_max_parallel_moves = 100
director_output_buffer_size = 10 M
director_ping_idle_timeout = 30 secs
director_ping_max_timeout = 1 mins
director_servers =
director_user_expire = 15 mins
director_user_kick_delay = 2 secs
director_username_hash = %u
disable_plaintext_auth = no
dotlock_use_excl = yes
doveadm_allowed_commands =
doveadm_api_key =
doveadm_http_rawlog_dir =
doveadm_password =  # hidden, use -P to show it
doveadm_port = 12346
doveadm_socket_path = doveadm-server
doveadm_username = doveadm
doveadm_worker_count = 0
dsync_alt_char = _
dsync_commit_msgs_interval = 100
dsync_features =
dsync_hashed_headers = Date Message-ID
dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u -U
first_valid_gid = 1
first_valid_uid = 500
haproxy_timeout = 3 secs
haproxy_trusted_networks =
hostname =
imap_capability = +SPECIAL-USE
imap_client_workarounds = delay-newmail tb-extra-mailbox-sep
imap_fetch_failure = disconnect-immediately
imap_hibernate_timeout = 0
imap_id_log =
imap_id_retain = no
imap_id_send = name *
imap_idle_notify_interval = 2 mins
imap_logout_format = in=%i out=%o
imap_max_line_length = 64 k
imap_metadata = no
imap_urlauth_host =
imap_urlauth_logout_format = in=%i out=%o
imap_urlauth_port = 143
imapc_cmd_timeout = 5 mins
imapc_connection_retry_count = 1
imapc_connection_retry_interval = 1 secs
imapc_features =
imapc_host =
imapc_list_prefix =
imapc_master_user =
imapc_max_idle_time = 29 mins
imapc_max_line_length = 0
imapc_password =
imapc_port = 143
imapc_rawlog_dir =
imapc_sasl_mechanisms =
imapc_ssl = no
imapc_ssl_verify = yes
imapc_user =
import_environment = TZ CORE_OUTOFMEM CORE_ERROR
info_log_path =
instance_name = dovecot
last_valid_gid = 0
last_valid_uid = 0
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
lda_original_recipient_header =
libexec_dir = /opt/dovecot22/libexec/dovecot
listen = *, ::
lmtp_address_translate =
lmtp_hdr_delivery_address = final
lmtp_proxy = no
lmtp_rcpt_check_quota = no
lmtp_save_to_detail_mailbox = no
lmtp_user_concurrency_limit = 0
lock_method = fcntl
log_path = syslog
log_timestamp = "%b %d %H:%M:%S "
login_access_sockets =
login_greeting = Dovecot ready.
login_log_format = %$: %s
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c
session=<%{session}>
login_plugin_dir = /opt/dovecot22/lib/dovecot/login
login_plugins =
login_proxy_max_disconnect_delay = 0
login_proxy_notify_path = proxy-notify
login_source_ips =
login_trusted_networks = 10.11.100.0/24
mail_access_groups =
mail_always_cache_fields =
mail_attachment_detection_options =
mail_attachment_dir =
mail_attachment_fs = sis posix
mail_attachment_hash = %{sha1}
mail_attachment_min_size = 128 k
mail_attribute_dict =
mail_cache_compress_continued_percentage = 200
mail_cache_compress_delete_percentage = 20
mail_cache_compress_header_continue_count = 4
mail_cache_compress_min_size = 32 k
mail_cache_fields = flags
mail_cache_min_mail_count = 0
mail_cache_record_max_size = 64 k
mail_cache_unaccessed_field_drop = 30 days
mail_chroot =
mail_debug = no
mail_fsync = optimized
mail_full_filesystem_access = no
mail_gid =
mail_home =
mail_index_log2_max_age = 2 days
mail_index_log_rotate_max_size = 1 M
mail_index_log_rotate_min_age = 5 mins
mail_index_log_rotate_min_size = 32 k
mail_index_rewrite_max_log_bytes = 128 k
mail_index_rewrite_min_log_bytes = 8 k
mail_location = maildir:~/Maildir
mail_log_prefix = "%s(%u): "
mail_max_keyword_length = 50
mail_max_lock_timeout = 0
mail_max_userip_connections = 10
mail_never_cache_fields = imap.envelope
mail_nfs_index = no
mail_nfs_storage = no
mail_plugin_dir = /opt/dovecot22/lib/dovecot
mail_plugins = " quota notify replication"
mail_prefetch_count = 0
mail_privileged_group =
mail_save_crlf = no
mail_server_admin =
mail_server_comment =
mail_shared_explicit_inbox = no
mail_sort_max_read_count = 0
mail_temp_dir = /tmp
mail_temp_scan_interval = 1 weeks
mail_uid =
mail_vsize_bg_after_count = 0
mailbox_idle_check_interval = 30 secs
mailbox_list_index = no
mailbox_list_index_include_inbox = no
mailbox_list_index_very_dirty_syncs = no
maildir_broken_filename_sizes = no
maildir_copy_with_hardlinks = yes
maildir_empty_new = no
maildir_stat_dirs = no
maildir_very_dirty_syncs = no
managesieve_client_workarounds =
managesieve_implementation_string = Dovecot Pigeonhole
managesieve_logout_format = bytes=%i/%o
managesieve_max_compile_errors = 5
managesieve_max_line_length = 65536
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
master_user_separator =
mbox_dirty_syncs = yes
mbox_dotlock_change_timeout = 2 mins
mbox_lazy_writes = yes
mbox_lock_timeout = 5 mins
mbox_md5 = apop3d
mbox_min_index_size = 0
mbox_read_locks = fcntl
mbox_very_dirty_syncs = no
mbox_write_locks = dotlock fcntl
mdbox_preallocate_space = no
mdbox_purge_preserve_alt = no
mdbox_rotate_interval = 0
mdbox_rotate_size = 2 M
mmap_disable = no
namespace {
  disabled = no
  hidden = no
  ignore_on_failure = no
  inbox = yes
  list = yes
  location =
  mailbox Drafts {
    auto = subscribe
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Sent
  }
  mailbox Trash {
    auto = subscribe
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Trash
  }
  order = 0
  prefix = INBOX.
  separator = .
  subscriptions = yes
  type = private
}
passdb {
  args = /etc/opt/dovecot22/dovecot/dovecot-sql.conf.ext
  auth_verbose = default
  default_fields =
  deny = no
  driver = sql
  master = no
  mechanisms =
  name =
  override_fields =
  pass = no
  result_failure = continue
  result_internalfail = continue
  result_success = return-ok
  skip = never
  username_filter =
}
plugin {
  mail_replica = tcp:192.168.11.2
  quota = maildir:User quota
  quota_warning = storage=90%% quota-warning 90 %u
  recipient_delimiter =   sieve = file:~/.sieve;active=~/.dovecot.sieve
  sieve_max_script_size = 1M
  sieve_quota_max_scripts = 20
}
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
pop3_delete_type = default
pop3_deleted_flag =
pop3_enable_last = no
pop3_fast_size_lookups = no
pop3_lock_session = no
pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
pop3_no_flag_updates = no
pop3_reuse_xuidl = no
pop3_save_uidl = no
pop3_uidl_duplicates = allow
pop3_uidl_format = %08Xu%08Xv
pop3c_features =
pop3c_host =
pop3c_master_user =
pop3c_password =
pop3c_port = 110
pop3c_quick_received_date = no
pop3c_rawlog_dir =
pop3c_ssl = no
pop3c_ssl_verify = yes
pop3c_user = %u
postmaster_address = postmaster@%d
protocols = imap pop3 lmtp sieve
quota_full_tempfail = no
rawlog_dir =
recipient_delimiter = rejection_reason = Your message to <%t> was
automatically rejected:%n%r
rejection_subject = Rejected: %s
replication_dsync_parameters = -d -N -l 30 -U
replication_full_sync_interval = 1 days
replication_max_conns = 10
replicator_host = replicator
replicator_port = 0
sendmail_path = /usr/sbin/sendmail
service aggregator {
  chroot = .
  client_limit = 0
  drop_priv_before_exec = no
  executable = aggregator
  extra_groups =
  fifo_listener replication-notify-fifo {
    group =
    mode = 0600
    user = vmail
  }
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener replication-notify {
    group =
    mode = 0600
    user = vmail
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service anvil {
  chroot = empty
  client_limit = 12560
  drop_priv_before_exec = no
  executable = anvil
  extra_groups =
  group =
  idle_kill = 4294967295 secs
  privileged_group =
  process_limit = 1
  process_min_avail = 1
  protocol =
  service_count = 0
  type = anvil
  unix_listener anvil-auth-penalty {
    group =
    mode = 0600
    user =
  }
  unix_listener anvil {
    group =
    mode = 0600
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service auth-worker {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = auth -w
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 1
  type =
  unix_listener auth-worker {
    group =
    mode = 0600
    user = $default_internal_user
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service auth {
  chroot =
  client_limit = 12560
  drop_priv_before_exec = no
  executable = auth
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener auth-client {
    group =
    mode = 0600
    user = $default_internal_user
  }
  unix_listener auth-login {
    group =
    mode = 0600
    user = $default_internal_user
  }
  unix_listener auth-master {
    group =
    mode = 0600
    user =
  }
  unix_listener auth-userdb {
    group = vmail
    mode = 0660
    user = vmail
  }
  unix_listener login/login {
    group =
    mode = 0666
    user =
  }
  unix_listener token-login/tokenlogin {
    group =
    mode = 0666
    user =
  }
  user = $default_internal_user
  vsz_limit = 4 G
}
service config {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = config
  extra_groups =
  group =
  idle_kill = 4294967295 secs
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type = config
  unix_listener config {
    group =
    mode = 0600
    user =
  }
  user =
  vsz_limit = 2 G
}
service dict-async {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = dict
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener dict-async {
    group =
    mode = 0600
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service dict {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = dict
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener dict {
    group =
    mode = 0600
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service director {
  chroot = .
  client_limit = 0
  drop_priv_before_exec = no
  executable = director
  extra_groups =
  fifo_listener login/proxy-notify {
    group =
    mode = 00
    user =
  }
  group =
  idle_kill = 4294967295 secs
  inet_listener {
    address =
    haproxy = no
    port = 0
    reuse_port = no
    ssl = no
  }
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener director-admin {
    group =
    mode = 0600
    user =
  }
  unix_listener director-userdb {
    group =
    mode = 0600
    user =
  }
  unix_listener login/director {
    group =
    mode = 00
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service dns_client {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = dns-client
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener dns-client {
    group =
    mode = 0666
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service doveadm {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = doveadm-server
  extra_groups =
  group =
  idle_kill = 0
  inet_listener {
    address =
    haproxy = no
    port = 12346
    reuse_port = no
    ssl = no
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 1
  type =
  unix_listener doveadm-server {
    group =
    mode = 0600
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service imap-hibernate {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = imap-hibernate
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = imap
  service_count = 0
  type =
  unix_listener imap-hibernate {
    group =
    mode = 0600
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service imap-login {
  chroot = login
  client_limit = 0
  drop_priv_before_exec = no
  executable = imap-login
  extra_groups =
  group =
  idle_kill = 0
  inet_listener imap {
    address =
    haproxy = no
    port = 143
    reuse_port = no
    ssl = no
  }
  inet_listener imaps {
    address =
    haproxy = no
    port = 993
    reuse_port = no
    ssl = yes
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = imap
  service_count = 1
  type = login
  user = $default_login_user
  vsz_limit = 18446744073709551615 B
}
service imap-urlauth-login {
  chroot = token-login
  client_limit = 0
  drop_priv_before_exec = no
  executable = imap-urlauth-login
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = imap
  service_count = 1
  type = login
  unix_listener imap-urlauth {
    group =
    mode = 0666
    user =
  }
  user = $default_login_user
  vsz_limit = 18446744073709551615 B
}
service imap-urlauth-worker {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = imap-urlauth-worker
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1024
  process_min_avail = 0
  protocol = imap
  service_count = 1
  type =
  unix_listener imap-urlauth-worker {
    group =
    mode = 0600
    user = $default_internal_user
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service imap-urlauth {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = imap-urlauth
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1024
  process_min_avail = 0
  protocol = imap
  service_count = 1
  type =
  unix_listener token-login/imap-urlauth {
    group =
    mode = 0666
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service imap {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = imap
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 5000
  process_min_avail = 0
  protocol = imap
  service_count = 1
  type =
  unix_listener imap-master {
    group =
    mode = 0600
    user =
  }
  unix_listener login/imap {
    group =
    mode = 0666
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service indexer-worker {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = indexer-worker
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 10
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener indexer-worker {
    group =
    mode = 0600
    user = $default_internal_user
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service indexer {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = indexer
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener indexer {
    group =
    mode = 0666
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service ipc {
  chroot = empty
  client_limit = 0
  drop_priv_before_exec = no
  executable = ipc
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener ipc {
    group =
    mode = 0600
    user =
  }
  unix_listener login/ipc-proxy {
    group =
    mode = 0600
    user = $default_login_user
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service lmtp {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = lmtp
  extra_groups =
  group =
  idle_kill = 0
  inet_listener lmtp {
    address =
    haproxy = no
    port = 24
    reuse_port = no
    ssl = no
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = lmtp
  service_count = 0
  type =
  unix_listener lmtp {
    group =
    mode = 0666
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service log {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = log
  extra_groups =
  group =
  idle_kill = 4294967295 secs
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type = log
  unix_listener log-errors {
    group =
    mode = 0600
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service managesieve-login {
  chroot = login
  client_limit = 0
  drop_priv_before_exec = no
  executable = managesieve-login
  extra_groups =
  group =
  idle_kill = 0
  inet_listener sieve {
    address =
    haproxy = no
    port = 4190
    reuse_port = no
    ssl = no
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = sieve
  service_count = 1
  type = login
  user = $default_login_user
  vsz_limit = 18446744073709551615 B
}
service managesieve {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = managesieve
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = sieve
  service_count = 1
  type =
  unix_listener login/sieve {
    group =
    mode = 0666
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service pop3-login {
  chroot = login
  client_limit = 0
  drop_priv_before_exec = no
  executable = pop3-login
  extra_groups =
  group =
  idle_kill = 0
  inet_listener pop3 {
    address =
    haproxy = no
    port = 110
    reuse_port = no
    ssl = no
  }
  inet_listener pop3s {
    address =
    haproxy = no
    port = 995
    reuse_port = no
    ssl = yes
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = pop3
  service_count = 1
  type = login
  user = $default_login_user
  vsz_limit = 18446744073709551615 B
}
service pop3 {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = pop3
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1024
  process_min_avail = 0
  protocol = pop3
  service_count = 1
  type =
  unix_listener login/pop3 {
    group =
    mode = 0666
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service quota-warning {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = script /usr/local/sbin/quota-warning.py
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener quota-warning {
    group =
    mode = 0600
    user = vmail
  }
  user = vmail
  vsz_limit = 18446744073709551615 B
}
service replicator {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = replicator
  extra_groups =
  group =
  idle_kill = 4294967295 secs
  privileged_group =
  process_limit = 1
  process_min_avail = 1
  protocol =
  service_count = 0
  type =
  unix_listener replicator-doveadm {
    group = vmail
    mode = 0660
    user = $default_internal_user
  }
  unix_listener replicator {
    group =
    mode = 0600
    user = $default_internal_user
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service ssl-params {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable = ssl-params
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type = startup
  unix_listener login/ssl-params {
    group =
    mode = 0666
    user =
  }
  unix_listener ssl-params {
    group =
    mode = 0666
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service stats {
  chroot = empty
  client_limit = 0
  drop_priv_before_exec = no
  executable = stats
  extra_groups =
  fifo_listener stats-mail {
    group =
    mode = 0600
    user =
  }
  fifo_listener stats-user {
    group =
    mode = 0600
    user =
  }
  group =
  idle_kill = 4294967295 secs
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener stats {
    group =
    mode = 0600
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service submission-login {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable =
  extra_groups =
  group =
  idle_kill = 0
  inet_listener submission {
    address =
    haproxy = no
    port = 0
    reuse_port = no
    ssl = no
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  user =
  vsz_limit = 18446744073709551615 B
}
service submission {
  chroot =
  client_limit = 0
  drop_priv_before_exec = no
  executable =
  extra_groups =
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  user =
  vsz_limit = 18446744073709551615 B
}
shutdown_clients = yes
ssl = yes
ssl_alt_cert =
ssl_alt_key =
ssl_ca = </etc/ssl/certs/RapidSSL_RSA_CA_2018.pem
ssl_cert = </etc/ssl/certs/example.com.crt
ssl_cert_username_field = commonName
ssl_cipher_list =
ALL:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW
at STRENGTH
ssl_client_ca_dir =
ssl_client_ca_file =
ssl_client_cert =
ssl_client_key =
ssl_crypto_device =
ssl_dh_parameters_length = 4096
ssl_key =  # hidden, use -P to show it
ssl_key_password =
ssl_options =
ssl_parameters_regenerate = 0
ssl_prefer_server_ciphers = yes
ssl_protocols = !SSLv3
ssl_require_crl = yes
ssl_verify_client_cert = no
state_dir = /var/opt/dovecot22/lib
stats_carbon_interval = 30 secs
stats_carbon_name =
stats_carbon_server =
stats_command_min_time = 1 mins
stats_domain_min_time = 12 hours
stats_ip_min_time = 12 hours
stats_memory_limit = 16 M
stats_session_min_time = 15 mins
stats_user_min_time = 1 hours
submission_host =
syslog_facility = mail
userdb {
  args = /etc/opt/dovecot22/dovecot/dovecot-sql.conf.ext
  auth_verbose = default
  default_fields =
  driver = sql
  name =
  override_fields =
  result_failure = continue
  result_internalfail = continue
  result_success = return-ok
  skip = never
}
valid_chroot_dirs =
verbose_proctitle = yes
verbose_ssl = no
version_ignore = no
protocol lmtp {
  mail_plugins = " quota notify replication sieve"
}
protocol lda {
  mail_plugins = " quota notify replication sieve"
}
protocol imap {
  mail_max_userip_connections = 150
  mail_plugins = " quota notify replication imap_quota"
}
protocol sieve {
  managesieve_implementation_string = Dovecot Pigeonhole
}
protocol pop3 {
  mail_max_userip_connections = 100
}


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