root@vao01:/etc/dovecot/conf.d# dovecot -n
# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.21 (92477967)
# OS: Linux 4.19.2 x86_64 Ubuntu 18.04.1 LTS zfs
auth_mechanisms = plain login
default_internal_user = vmail
first_valid_uid = 0
hostname = mail.senbonzakura.net
mail_debug = yes
mail_location = maildir:/decrypted/%d/%n
mail_privileged_group = vmail
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
namespace inbox {
  inbox = yes
  location = 
  mailbox Archive {
    auto = subscribe
    special_use = \Archive
  }
  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 = 
}
passdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  antispam_backend = pipe
  antispam_mail_notspam = learn_ham
  antispam_mail_sendmail = /usr/bin/rspamc
  antispam_mail_sendmail_args = -h;localhost:11334
  antispam_mail_spam = learn_spam
  antispam_spam = Junk
  antispam_trash = Trash
  fts = solr
  fts_solr = break-imap-search url=http://localhost:8080/solr/
  sieve = file:/decrypted/%d/%n/sieve;active=/decrypted/%d/%n/.dovecot.sieve
  sieve_before = /var/lib/dovecot/sieve/before.d
}
postmaster_address = postmaster@senbonzakura.net
protocols = imap lmtp sieve pop3
service auth-worker {
  unix_listener auth-worker {
    user = vmail
  }
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
  unix_listener auth-userdb {
    group = vmail
    mode = 0660
    user = vmail
  }
  user = vmail
}
service imap-login {
  inet_listener imap {
    port = 0
  }
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0666
    user = postfix
  }
  user = vmail
}
service pop3-login {
  inet_listener pop3 {
    port = 0
  }
}
ssl = required
ssl_cert = </etc/letsencrypt/live/senbonzakura.net/fullchain.pem
ssl_cipher_list = ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256
ssl_client_ca_dir = /etc/ssl/certs
ssl_dh_parameters_length = 4096
ssl_key =  # hidden, use -P to show it
ssl_prefer_server_ciphers = yes
ssl_protocols = !SSLv3 !TLSv1 !TLSv1.1 TLSv1.2
userdb {
  args = uid=vmail gid=vmail home=/decrypted/%d/%n
  driver = static
}
protocol lmtp {
  mail_plugins = " sieve sieve"
  postmaster_address = postmaster@senbonzakura.net
}
protocol lda {
  mail_plugins = " sieve"
}
protocol imap {
  mail_plugins = " antispam fts fts_solr"
}