Добрый день!

Почтовый сервер на Exim стал рассылать спам с поддельными заголовками.
В почтовых логах красуется хост с именем "local".

От этого хоста за 4 дня ушло 7500 писем на разные почтовые сервера в которых даже есть gmail.com, aol.com и т.д.

Мой IP занесли в черные списки.
Почта от клиентов этого домена перестала ходить на многие сервера.

Конфиг exim.conf:
################ Начало файла ###################
primary_hostname = mail.company.ru
hide mysql_servers = localhost/mail/sqlmail/M4pnh12

domainlist local_domains = ${lookup mysql{SELECT `domain` \
FROM `domain` WHERE \
`domain`='${quote_mysql:$domain}' AND \
`active`='1'}}

domainlist relay_to_domains = ${lookup mysql{SELECT `domain` \
FROM `domain` WHERE \
`domain`='${quote_mysql:$domain}' AND \
`active`='1'}}

hostlist   relay_from_hosts = localhost:127.0.0.0/8:192.168.1.0/24 #add the hosts from which you allow relaying here

acl_smtp_rcpt = acl_check_rcpt
acl_smtp_data = acl_check_data

av_scanner = clamd:/var/run/clamav/clamd.socket

####
#spamd_address = 127.0.0.1 783

##### tls
#tls_on_connect_ports = 465
#tls_advertise_hosts = *
#tls_certificate = /usr/local/etc/ssl/certs/mail.pem
#tls_privatekey = /usr/local/etc/ssl/certs/mail.key
#####
daemon_smtp_ports = 25 : 465

####
qualify_domain = company.ru
qualify_recipient = company.ru
allow_domain_literals = false
exim_user = exim
exim_group = exim
never_users = root
rfc1413_query_timeout = 0s

sender_unqualified_hosts = +relay_from_hosts
recipient_unqualified_hosts = +relay_from_hosts

ignore_bounce_errors_after = 45m
timeout_frozen_after = 15d
helo_accept_junk_hosts =
auto_thaw = 1h
smtp_banner = "$primary_hostname, ESMTP Postfix"
smtp_accept_max = 50
smtp_accept_max_per_connection = 25
smtp_connect_backlog = 30
smtp_accept_max_per_host = 20
split_spool_directory = true
remote_max_parallel = 15
return_size_limit = 70k
message_size_limit = 64M
helo_allow_chars = _
smtp_enforce_sync = true

log_selector = \
+all_parents \
+connection_reject \
+incoming_interface \
+lost_incoming_connection \
+received_sender \
+received_recipients \
+smtp_confirmation \
+smtp_syntax_error \
+smtp_protocol_error \
-queue_run

syslog_timestamp = no

begin acl

acl_check_rcpt:

deny condition = ${if eq{$host_lookup_failed}{1}}
#deny condition = ${lookup{$sender_host_name}nwildlsearch{black.list}{yes}}

accept  hosts = :
deny    message       = "incorrect symbol in address"
domains       = +local_domains
local_parts   = ^[.] : ^.*[@%!/|]

deny    message       = "incorrect symbol in address"
domains       = !+local_domains
local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./

accept  local_parts   = postmaster
domains       = +local_domains

deny    message       = "HELO/EHLO required by SMTP RFC"
condition     = ${if eq{$sender_helo_name}{}{yes}{no}}

accept  authenticated = *
deny    !authenticated = *
        sender_domains = +local_domains : +relay_to_domains
        message = Warning! Authentication required!

deny    message       = "Your IP in HELO - access denied!"
hosts         =  * : !+relay_from_hosts : !81-196.niitk.kz
condition     = ${if eq{$sender_helo_name}\
{$sender_host_address}{true}{false}}

deny    condition     = ${if eq{$sender_helo_name}\
{$interface_address}{yes}{no}}
hosts         = !127.0.0.1 : !localhost : *
message       = "My IP in your HELO! Access denied!"

deny    condition     = ${if match{$sender_helo_name}\
{\N^\d+$\N}{yes}{no}}
hosts         = !127.0.0.1 : !localhost : *
message       = "Incorrect HELO string"

# filter spammers from dynamic ips
deny    message       = "your hostname is bad (adsl, poll, ppp & etc)."
condition     = ${if match{$sender_host_name} \
{adsl|dialup|pool|peer|dhcp} \
{yes}{no}}

warn
set acl_m0 = 30s
warn
hosts = +relay_from_hosts:         #disable waits for 'friendly' hosts
set acl_m0 = 0s
warn
logwrite = Delay $acl_m0 for $sender_host_name \
[$sender_host_address] with HELO=$sender_helo_name. Mail \
from $sender_address to $local_part@$domain.
delay = $acl_m0

accept  domains       = +local_domains
endpass
message       = "No such user"
verify        = recipient

accept  domains       = +relay_to_domains
endpass
message       = "i don't know how to relay to this address"
verify        = recipient

deny    message       = "you in blacklist - $dnslist_domain \n $dnslist_text"
          dnslists      = opm.blitzed.org : \
                          cbl.abuseat.org : \
                          bl.csma.biz :\
                          dialups.mail-abuse.org :\
                          bl.spamcop.net :\
                          zen.spamhaus.org
                          
accept  hosts         = +relay_from_hosts

deny    message       = "Homo hominus lupus est"

acl_check_data:

# check for viruses
deny malware = *
message = "Your message contains viruses: $malware_name"

# if needed - add spam filtering here

# permit everything else
accept

begin routers

dnslookup:
driver = dnslookup
domains = ! +local_domains
transport = remote_smtp
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
no_more

system_aliases:
driver      = redirect
allow_fail
allow_defer
data = ${lookup mysql{SELECT `goto` FROM `alias` WHERE \
`address`='${quote_mysql:$local_part@$domain}' OR \
`address`='${quote_mysql:@$domain}'}}

dovecot_user:
driver = accept
condition = ${lookup mysql{SELECT `goto` FROM \
`alias` WHERE \
`address`='${quote_mysql:$local_part@$domain}' OR \
`address`='${quote_mysql:@$domain}'}{yes}{no}}
transport = dovecot_delivery

begin transports

remote_smtp:
driver = smtp
#interface = 4.3.2.1 #your public ip address, if it's the main server ip - you could skip this parameter. if it's an alias- it must be specified in clear

dovecot_delivery:
driver = pipe
command = /usr/libexec/dovecot/deliver -d $local_part@$domain
message_prefix =
message_suffix =
delivery_date_add
envelope_to_add
return_path_add
log_output
user = exim

address_pipe:
driver = pipe
return_output

address_reply:
driver = autoreply

begin retry

*                    *       F,2h,15m; G,16h,1h,1.5; F,4d,6h

begin rewrite

begin authenticators

auth_plain:
driver = plaintext
public_name = LOGIN
server_prompts = Username:: : Password::
server_condition = "${if crypteq{$2}{${lookup mysql{SELECT `password` FROM `mailbox` WHERE `username` = '${quote_mysql:$1}'}}}{yes}{no}}"
server_set_id = $1

auth_login:
driver = plaintext
public_name = PLAIN
server_condition = "${if crypteq{$3}{${lookup mysql{SELECT `password` FROM `mailbox` WHERE `username` = '${quote_mysql:$2}'}}}{yes}{no}}"
server_prompts = :
server_set_id = $2

auth_cram_md5:
driver = dovecot
public_name = CRAM-MD5
server_socket = /var/run/dovecot/auth-client
server_set_id = $auth1
################## Конец Файла ########################

Стало интересно, как мой почтовик стал рассылать спам при опции:
accept  authenticated = *

Кто не прошел авторизацию, тот не может посылать письма.

Также стоит это:
hostlist   relay_from_hosts = localhost:127.0.0.0/8:192.168.1.0/24

Здесь нету сети 0.0.0.0/0 - которая говорит что мой сервер открытый релей.

Как вообще произошло такое, если самые основные опции в конфиге уже имеются.

Поможет ли мне опция?:
auth_advertise_hosts = *