Trying to track down source of duplicate messages

Alex mysqlstudent at gmail.com
Sat Mar 30 22:09:45 EET 2019


Hi,

I have a fedora28 system with dovecot-2.3.5 and I'm trying to figure
out why I'm increasingly receiving duplicate emails. The message IDs
are exactly the same. It's always two of the same messages. I don't
think it's ever occurred in the inbox. It doesn't happen with every
message or seemingly in every folder.

I've read about dovecot deduplicate, but of course I want to prevent
them from being duplicated in the first place. It's also happening
much more frequently now.

Could something in my configuration cause this problem?

Below is the contents of my doveconf

# 2.3.5 (513208660): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.5 (2483b085)
# OS: Linux 4.20.11-100.fc28.x86_64 x86_64 Fedora release 28 (Twenty Eight)
# Hostname: orion.inside.guardiandigital.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 =
auth_failure_delay = 2 secs
auth_gssapi_hostname =
auth_krb5_keytab =
auth_master_user_separator =
auth_mechanisms = plain
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_log_only = no
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 = no
auth_verbose_passwords = no
auth_winbind_helper_path = /usr/bin/ntlm_auth
auth_worker_max_count = 30
base_dir = /var/run/dovecot
config_cache_size = 1 M
debug_log_path =
default_client_limit = 1000
default_idle_kill = 1 mins
default_internal_group = dovecot
default_internal_user = dovecot
default_login_user = dovenull
default_process_limit = 100
default_vsz_limit = 256 M
deliver_log_format = msgid=%m: %$
dict_db_config =
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 = yes
dotlock_use_excl = yes
doveadm_allowed_commands =
doveadm_api_key =
doveadm_http_rawlog_dir =
doveadm_password =
doveadm_port = 0
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 =
imap_client_workarounds =
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_literal_minus = no
imap_logout_format = in=%i out=%o deleted=%{deleted}
expunged=%{expunged} trashed=%{trashed} hdr_count=%{fetch_hdr_count}
hdr_bytes=%{fetch_hdr_bytes} body_count=%{fetch_body_count}
body_bytes=%{fetch_body_bytes}
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 LISTEN_PID LISTEN_FDS
info_log_path =
instance_name = dovecot
last_valid_gid = 0
last_valid_uid = 0
lda_mailbox_autocreate = no
lda_mailbox_autosubscribe = no
lda_original_recipient_header =
libexec_dir = /usr/libexec/dovecot
listen = *, ::
lmtp_hdr_delivery_address = final
lmtp_proxy = no
lmtp_proxy_rawlog_dir =
lmtp_rawlog_dir =
lmtp_rcpt_check_quota = no
lmtp_save_to_detail_mailbox = no
lmtp_user_concurrency_limit = 0
lock_method = fcntl
log_core_filter =
log_debug =
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 = /usr/lib64/dovecot/login
login_plugins =
login_proxy_max_disconnect_delay = 0
login_proxy_notify_path = proxy-notify
login_source_ips =
login_trusted_networks =
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
mail_home = mail/
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 = mbox:~/mail:INBOX=/var/spool/mail/%u
mail_log_prefix = "%s(%u)<%{pid}><%{session}>: "
mail_max_keyword_length = 50
mail_max_lock_timeout = 0
mail_max_userip_connections = 500
mail_never_cache_fields = imap.envelope
mail_nfs_index = no
mail_nfs_storage = no
mail_plugin_dir = /usr/lib64/dovecot
mail_plugins = " listescape"
mail_prefetch_count = 0
mail_privileged_group = mail
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 = yes
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 = fcntl
mdbox_preallocate_space = no
mdbox_rotate_interval = 0
mdbox_rotate_size = 10 M
mmap_disable = no
namespace inbox {
  disabled = no
  hidden = no
  ignore_on_failure = no
  inbox = yes
  list = yes
  location =
  mailbox Drafts {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Drafts
  }
  mailbox Junk {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Junk
  }
  mailbox Sent {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Sent
  }
  mailbox Trash {
    auto = no
    autoexpunge = 0
    autoexpunge_max_mails = 0
    comment =
    driver =
    special_use = \Trash
  }
  order = 0
  prefix =
  separator =
  subscriptions = yes
  type = private
}
old_stats_carbon_interval = 30 secs
old_stats_carbon_name =
old_stats_carbon_server =
old_stats_command_min_time = 1 mins
old_stats_domain_min_time = 12 hours
old_stats_ip_min_time = 12 hours
old_stats_memory_limit = 16 M
old_stats_session_min_time = 15 mins
old_stats_user_min_time = 1 hours
passdb {
  args =
  auth_verbose = default
  default_fields =
  deny = no
  driver = pam
  master = no
  mechanisms =
  name =
  override_fields =
  pass = no
  result_failure = continue
  result_internalfail = continue
  result_success = return-ok
  skip = never
  username_filter =
}
passdb {
  args =
  auth_verbose = default
  default_fields =
  deny = no
  driver = pam
  master = no
  mechanisms =
  name =
  override_fields =
  pass = no
  result_failure = continue
  result_internalfail = continue
  result_success = return-ok
  skip = never
  username_filter =
}
pop3_client_workarounds =
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@%{if;%d;ne;;%d;%{hostname}}
protocols = imap pop3
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 =
  }
  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 =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service anvil {
  chroot = empty
  client_limit = 0
  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 = 0
  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 /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  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 =
    mode = 0666
    user = $default_internal_user
  }
  unix_listener login/login {
    group =
    mode = 0666
    user =
  }
  unix_listener token-login/tokenlogin {
    group =
    mode = 0666
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
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 = 18446744073709551615 B
}
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 = $default_internal_group
    mode = 0660
    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 = $default_internal_group
    mode = 0660
    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
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener director-admin {
    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 = $default_internal_group
  group =
  idle_kill = 0
  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 = $default_internal_group
    mode = 0660
    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 = 0
    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 = 20
  protocol = imap
  service_count = 0
  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 = $default_internal_group
  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 = $default_internal_group
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1024
  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 = $default_internal_group
  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 = $default_internal_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 = $default_internal_group
  group =
  idle_kill = 0
  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 old-stats {
  chroot = empty
  client_limit = 0
  drop_priv_before_exec = no
  executable = old-stats
  extra_groups =
  fifo_listener old-stats-mail {
    group =
    mode = 0600
    user =
  }
  fifo_listener old-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 old-stats {
    group =
    mode = 0600
    user =
  }
  user = $default_internal_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 = 0
    reuse_port = no
    ssl = no
  }
  inet_listener pop3s {
    address = 192.168.1.100
    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 = $default_internal_group
  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 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 = 0
  protocol =
  service_count = 0
  type =
  unix_listener replicator-doveadm {
    group =
    mode = 00
    user = $default_internal_user
  }
  unix_listener replicator {
    group =
    mode = 0600
    user = $default_internal_user
  }
  user =
  vsz_limit = 18446744073709551615 B
}
service stats {
  chroot = empty
  client_limit = 0
  drop_priv_before_exec = no
  executable = stats
  extra_groups =
  group =
  idle_kill = 4294967295 secs
  privileged_group =
  process_limit = 1
  process_min_avail = 0
  protocol =
  service_count = 0
  type =
  unix_listener stats-reader {
    group =
    mode = 0600
    user =
  }
  unix_listener stats-writer {
    group = $default_internal_group
    mode = 0660
    user =
  }
  user = $default_internal_user
  vsz_limit = 18446744073709551615 B
}
service submission-login {
  chroot = login
  client_limit = 0
  drop_priv_before_exec = no
  executable = submission-login
  extra_groups =
  group =
  idle_kill = 0
  inet_listener submission {
    address =
    haproxy = no
    port = 587
    reuse_port = no
    ssl = no
  }
  privileged_group =
  process_limit = 0
  process_min_avail = 0
  protocol = submission
  service_count = 1
  type = login
  user = $default_login_user
  vsz_limit = 18446744073709551615 B
}
service submission {
  chroot =
  client_limit = 1
  drop_priv_before_exec = no
  executable = submission
  extra_groups = $default_internal_group
  group =
  idle_kill = 0
  privileged_group =
  process_limit = 1024
  process_min_avail = 0
  protocol = submission
  service_count = 1
  type =
  unix_listener login/submission {
    group =
    mode = 0666
    user =
  }
  user =
  vsz_limit = 18446744073709551615 B
}
shutdown_clients = yes
ssl = yes
ssl_alt_cert =
ssl_alt_key =
ssl_ca =
ssl_cert = </etc/letsencrypt/fullchain.pem
ssl_cert_username_field = commonName
ssl_cipher_list =
ALL:!LOW:!EXP:!aNULL:!RC4::!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
ssl_client_ca_dir =
ssl_client_ca_file =
ssl_client_cert =
ssl_client_key =
ssl_crypto_device =
ssl_curve_list =
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
ssl_key_password =
ssl_min_protocol = TLSv1
ssl_options =
ssl_prefer_server_ciphers = yes
ssl_require_crl = yes
ssl_verify_client_cert = no
state_dir = /var/lib/dovecot
stats_writer_socket_path = stats-writer
submission_client_workarounds =
submission_host =
submission_logout_format = in=%i out=%o
submission_max_mail_size = 40 M
submission_max_recipients = 0
submission_relay_command_timeout = 5 mins
submission_relay_connect_timeout = 30 secs
submission_relay_host =
submission_relay_master_user =
submission_relay_max_idle_time = 29 mins
submission_relay_password =
submission_relay_port = 25
submission_relay_rawlog_dir =
submission_relay_ssl = no
submission_relay_ssl_verify = yes
submission_relay_trusted = no
submission_relay_user =
submission_ssl = no
submission_timeout = 30 secs
syslog_facility = mail
userdb {
  args =
  auth_verbose = default
  default_fields =
  driver = passwd
  name =
  override_fields =
  result_failure = continue
  result_internalfail = continue
  result_success = return-ok
  skip = never
}
userdb {
  args =
  auth_verbose = default
  default_fields =
  driver = passwd
  name =
  override_fields =
  result_failure = continue
  result_internalfail = continue
  result_success = return-ok
  skip = never
}
valid_chroot_dirs =
verbose_proctitle = no
verbose_ssl = no
version_ignore = no


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