снабдите постфиксом always_BCC почтовую ошибку конфигурации системы

Я пытаюсь установить always_bcc в учетную запись архива для копирования всей входящей и исходящей почты в почтовый ящик, который может быть высосан сторонним облачным решением для архивации. Исходящий, хорошо работает, никакие проблемы. Входящий, и все это разваливается. Все представленное сохранено в постфиксной почтовой очереди:

Mail ID     Sent    From    To      Size    Status   
5333C1C03F6 2014/12/18 22:15    *********@gmail.com archive@domain.tld user2@domain.tld     5.02 kB mail system configuration error
7D4F11C07B4 2014/12/18 22:15    *********@gmail.com archive@domain.tld  user1@domain.tld    5.53 kB mail system configuration error:

Журналы ничего не показывают: mail.err

Dec 18 17:11:52 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: Duplicate namespace prefix: ""
Dec 18 17:11:52 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:12:59 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: Duplicate namespace prefix: ""
Dec 18 17:12:59 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:12:59 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: Duplicate namespace prefix: ""
Dec 18 17:12:59 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:15:40 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: list=yes requires prefix=a to end with separator
Dec 18 17:15:40 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:15:40 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: list=yes requires prefix=a to end with separator
Dec 18 17:15:40 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:15:42 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: list=yes requires prefix=a to end with separator
Dec 18 17:15:42 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:15:48 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: list=yes requires prefix=a to end with separator
Dec 18 17:15:48 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:17:35 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: list=yes requires prefix=a to end with separator
Dec 18 17:17:35 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 17:17:36 maple dovecot: imap(user1@domain.tld): Error: user user1@domain.tld: Initialization failed: namespace configuration error: list=yes requires prefix=a to end with separator
Dec 18 17:17:36 maple dovecot: imap(user1@domain.tld): Error: Invalid user settings. Refer to server log for more information.
Dec 18 21:07:48 maple dovecot: auth: Error: read(anvil-auth-penalty) failed: EOF
Dec 18 21:07:48 maple dovecot: auth: Error: net_connect_unix(anvil-auth-penalty) failed: Permission denied

mail.cf:

# See /usr/share/postfix/main.cf.dist for a commented, more complete version

# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

readme_directory = no

# SASL parameters
# --------------------------------
# Postfix 2.3 and later
# smtpd_sasl_path = smtpd
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
# This is a new option as of Postfix 2.10, and is required in addition to
# smtpd_recipient_restrictions for things to work properly in this setup.
# smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth-destination
smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination check_relay_domains

# TLS parameters
#----------------------------------
smtpd_tls_cert_file = /etc/ssl/certs/postfix.pem
smtpd_tls_key_file = /etc/ssl/private/postfix.pem
smtpd_use_tls = yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

# These are Postfix 2.3 and later.
#
# Enable (but don't force) all incoming smtp connections to use TLS.
# Enable (but don't force) all outgoing smtp connections to use TLS.
smtp_tls_security_level = may

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

# SMTPD parameters
# ---------------------------------

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
# will it be a permanent error or temporary
unknown_local_recipient_reject_code = 450
# how long to keep message on queue before return as failed.
# some have 3 days, I have 16 days as I am backup server for some people
# whom go on holiday with their server switched off.
maximal_queue_lifetime = 7d
# max and min time in seconds between retries if connection failed
minimal_backoff_time = 1000s
maximal_backoff_time = 8000s
# how long to wait when servers connect before receiving rest of data
smtp_helo_timeout = 60s
# how many address can be used in one message.
# effective stopper to mass spammers, accidental copy in whole address list
# but may restrict intentional mail shots.
smtpd_recipient_limit = 16
# how many error before back off.
smtpd_soft_error_limit = 3
# how many max errors before blocking it.
smtpd_hard_error_limit = 12
# require proper helo at connections
smtpd_helo_required = yes

# General Host Configuration and Delivery Information
# ----------------------------------

myhostname = maple.domain.tld
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = 
relayhost = domain.tld.outbound10.mxlogic.net:25
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all

# This specifies where the virtual mailbox folders will be located.
virtual_mailbox_base = /var/vmail
# This is for the mailbox location for each user. The domainaliases
# map allows us to make use of Postfix Admin's domain alias feature.
virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf, mysql:/etc/postfix/mysql_virtual_mailbox_domainaliases_maps.cf
# and their user id
virtual_uid_maps = static:150
# and group id
virtual_gid_maps = static:8
# This is for aliases. The domainaliases map allows us to make 
# use of Postfix Admin's domain alias feature.
virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf, mysql:/etc/postfix/mysql_virtual_alias_domainaliases_maps.cf
# This is for domain lookups.
virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf

# Integration with other packages
# ---------------------------------------

# Tell postfix to hand off mail to the definition for dovecot in master.cf
virtual_transport = dovecot

# Getting rid of unwanted headers. See: https://posluns.com/guides/header-removal/
header_checks = regexp:/etc/postfix/header_checks
# getting rid of x-original-to
enable_original_recipient = no
smtpd_tls_CAfile = /etc/ssl/certs/cacert.pem
smtpd_tls_session_cache_timeout = 3600s
smtpd_sasl_auth_enable = yes
smtpd_tls_security_level = may
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination check_relay_domains
always_bcc = archive

Я не могу даже перенести голову вокруг этого, так как ничто не имеет смысл. Момент я удаляю always_bcc строку, все хорошо работает.

Любые мысли, теории или вещи, которые я просто пропускаю, были бы полезны!Спасибо!

Править: Вывод голубятни-n

# 2.2.9: /etc/dovecot/dovecot.conf
doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:21: 'imaps' protocol is no longer necessary, remove it
# OS: Linux 3.13.0-43-generic x86_64 Ubuntu 14.04.1 LTS ext4
auth_mechanisms = plain login
disable_plaintext_auth = no
first_valid_uid = 150
last_valid_uid = 150
mail_gid = mail
mail_location = maildir:/var/vmail/%d/%n
mail_uid = vmail
passdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
postmaster_address = postmaster@domain.tld
protocols = imap
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-userdb {
    group = mail
    mode = 0600
    user = vmail
  }
}
service imap-login {
  inet_listener imap {
    port = 143
  }
  inet_listener imaps {
    port = 993
    ssl = yes
  }
}
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}

ОБНОВЛЕНИЕ: Те ошибки пространства имен голубятни могут быть связаны с некоторыми мерами, которые я попробовал прежде, чем попросить дальнейшую справку. Я собираюсь попытаться работать над этим снова за выходные, чтобы видеть, могу ли я найти дальнейшие ошибки в журналах или чем-либо еще, что я могу найти, чтобы помочь мне выяснить то, что продолжается. Я обновлю здесь независимо от того, что я нахожу. Эта проблема особенно сбивает с толку, так как я, может казаться, не нахожу ничего, что укажет на меня в правильном направлении. Я особенно не привык к программному обеспечению или проблемам конфигурации, которые не представляют себя по ошибке в некоторой точке в процессе с ясностью.