doveconf -n

# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.21 (92477967)
# OS: Linux 4.15.0-65-generic x86_64 Ubuntu 18.04.3 LTS ext4
auth_debug = yes
auth_gssapi_hostname = $ALL
auth_krb5_keytab = /etc/dovecot/dovecot.keytab
auth_master_user_separator = *
auth_mechanisms = plain ntlm login gssapi
auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.@*
dict {
  acl = mysql:/etc/dovecot/acl-dict-sql.conf
}
disable_plaintext_auth = no
dotlock_use_excl = no
hostname = smtp.example.net
imap_client_workarounds = tb-extra-mailbox-sep delay-newmail
last_valid_uid = 69999
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
lda_original_recipient_header = X-Original-To
listen = 10.9.8.8
mail_access_groups = vmail dovecot
mail_fsync = always
mail_gid = 1000
mail_location = maildir:/mnt/maildirs/%u/Maildir:INDEX=/mnt/maildirs/%u/index
mail_plugins = acl
mail_privileged_group = vmail
mail_server_admin = mailto:postmaster@example.net
mail_uid = 1000
mailbox_list_index = yes
mailbox_list_index_very_dirty_syncs = 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
mmap_disable = yes
namespace inbox {
  hidden = no
  inbox = yes
  list = yes
  location =
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix =
  separator = /
  subscriptions = yes
  type = private
}
passdb {
  args = /etc/dovecot/master-users
  driver = passwd-file
  master = yes
  result_success = continue
}
passdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
plugin {
  acl = vfile:/etc/dovecot/global-acls:cache_secs=300
  acl_shared_dict = proxy::acl
  listescape_char = \
  mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
  mail_log_fields = uid box msgid size
  quota = maildir:User quota
  quota_grace = 10%%
  quota_rule = *:storage=100G
  quota_rule2 = Trash:storage=+500M
  quota_rule3 = SPAM:ignore
  sieve = file:~/Maildir/sieve/;active=~/.dovecot.sieve
  sieve_before = /etc/dovecot/global.sieve
  sieve_max_actions = 32
  sieve_max_redirects = 4
}
postmaster_address = postmaster@example.net
protocols = " imap lmtp sieve sieve"
quota_full_tempfail = yes
service auth-worker {
  user = $default_internal_user
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
  unix_listener auth-userdb {
    mode = 0777
  }
}
service dict {
  unix_listener dict {
    group = vmail
    mode = 0660
    user = vmail
  }
}
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
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0600
    user = postfix
  }
  unix_listener lmtp {
    mode = 0666
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  process_min_avail = 1
  service_count = 0
}
service managesieve {
  process_limit = 1024
}
ssl_cert = </etc/letsencrypt/live/imap.example.net/fullchain.pem
ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL:!RC4::!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
ssl_client_ca_dir = /etc/ssl/certs
ssl_key =  # hidden, use -P to show it
submission_host = localhost
userdb {
  args = uid=1000 gid=1000 home=/mnt/maildirs/%Lu mail=maildir:/mnt/maildirs/%Lu/Maildir:INBOX=/mnt/maildirs/%Lu/Maildir allow_all_users=yes
  driver = static
}
protocol lmtp {
  info_log_path = /var/log/dovecot-lmtp.log
  mail_plugins = acl
}
protocol lda {
  mail_plugins = acl quota sieve acl listescape
}
protocol imap {
  mail_max_userip_connections = 300
  mail_plugins = acl quota imap_quota acl imap_acl listescape
}