T=remote_smtp defer (111): Connection refused a cualquier destinatario

$TTL 14400
@ IN SOA ns1.localhost.ltd. root.abogadosenba.com.ar. (
2017092303
7200
3600
1209600
180 )

@ 14400 IN NS ns1.localhost.ltd.
@ 14400 IN NS ns2.localhost.ltd.
@ 14400 IN A 192.157.236.47
mail 14400 IN A 192.157.236.47
www 14400 IN A 192.157.236.47
pop 14400 IN A 192.157.236.47
ftp 14400 IN A 192.157.236.47
@ 14400 IN MX 10 mail.abogadosenba.com.ar.
@ 14400 IN TXT "v=spf1 a mx ip4:192.157.236.47 ?all"
_dmarc 14400 IN TXT "v=DMARC1; p=none"
_domainkey 14400 IN TXT "t=y; o=~;"
mail._domainkey 14400 IN TXT "k=rsa; p=MIGfMA0GCSq...

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2017-09-23 13:32:10 1dvn3J-0007FF-5X H=mail-tester.com [94.23.206.89] Connection refused
2017-09-23 13:32:10 1dvn3J-0007FF-5X == web-utnk1@mail-tester.com R=dnslookup T=remote_smtp defer (111): Connection refused

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[root@kosmico sebas]# telnet 192.157.236.47 25
Trying 192.157.236.47...
Connected to 192.157.236.47.
Escape character is '^]'.
220 177926 ESMTP Exim 4.86_2 Ubuntu Sat, 23 Sep 2017 13:58:48 -0300

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[root@kosmico sebas]# telnet 192.157.236.47 587
Trying 192.157.236.47...
telnet: connect to address 192.157.236.47: Connection refused

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root@177926:/etc/exim4# cat exim4.conf.template
######################################################################
# #
# Exim configuration file for Vesta Control Panel #
# #
######################################################################

SPAMASSASSIN = yes
SPAM_SCORE = 50
#CLAMD = yes

add_environment = <; PATH=/bin:/usr/bin
keep_environment =
disable_ipv6 = true

domainlist local_domains = dsearch;/etc/exim4/domains/
domainlist relay_to_domains = dsearch;/etc/exim4/domains/
hostlist relay_from_hosts = 127.0.0.1
hostlist whitelist = net-iplsearch;/etc/exim4/white-blocks.conf
hostlist spammers = net-iplsearch;/etc/exim4/spam-blocks.conf
no_local_from_check
untrusted_set_sender = *
acl_smtp_connect = acl_check_spammers
acl_smtp_mail = acl_check_mail
acl_smtp_rcpt = acl_check_rcpt
acl_smtp_data = acl_check_data
acl_smtp_mime = acl_check_mime

.ifdef SPAMASSASSIN
spamd_address = 127.0.0.1 783
.endif

.ifdef CLAMD
av_scanner = clamd: /var/run/clamav/clamd.ctl
.endif

tls_advertise_hosts = *
tls_certificate = /usr/local/vesta/ssl/certificate.crt
tls_privatekey = /usr/local/vesta/ssl/certificate.key

daemon_smtp_ports = 25 : 465 : 587 : 2525
tls_on_connect_ports = 465
never_users = root
host_lookup = *
########auth_advertise_hosts = *
rfc1413_hosts = *
rfc1413_query_timeout = 5s
ignore_bounce_errors_after = 2d
timeout_frozen_after = 7d

DKIM_DOMAIN = ${lc:${domain:$h_from:}}
DKIM_FILE = /etc/exim4/domains/${lc:${domain:$h_from:}}/dkim.pem
DKIM_PRIVATE_KEY = ${if exists{DKIM_FILE}{DKIM_FILE}{0}}



######################################################################
# ACL CONFIGURATION #
# Specifies access control lists for incoming SMTP mail #
######################################################################
begin acl

acl_check_spammers:
accept hosts = +whitelist

drop message = Your host in blacklist on this server.
log_message = Host in blacklist
hosts = +spammers

accept


acl_check_mail:
deny condition = ${if eq{$sender_helo_name}{}}
message = HELO required before MAIL

drop message = Helo name contains a ip address (HELO was $sender_helo_name) and not is valid
condition = ${if match{$sender_helo_name}{\N((\d{1,3}[.-]\d{1,3}[.-]\d{1,3}[.-]\d{1,3})|([0-9a-f]{8})|([0-9A-F]{8}))\N}{yes}{no}}
condition = ${if match {${lookup dnsdb{>: defer_never,ptr=$sender_host_address}}\}{$sender_helo_name}{no}{yes}}
delay = 45s

drop condition = ${if isip{$sender_helo_name}}
message = Access denied - Invalid HELO name (See RFC2821 4.1.3)

drop condition = ${if eq{[$interface_address]}{$sender_helo_name}}
message = $interface_address is _my_ address

accept


acl_check_rcpt:
accept hosts = :

deny message = Restricted characters in address
domains = +local_domains
local_parts = ^[.] : ^.*[@%!/|]

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

require verify = sender

accept hosts = +relay_from_hosts
control = submission

accept authenticated = *
control = submission/domain=

deny message = Rejected because $sender_host_address is in a black list at $dnslist_domain\n$dnslist_text
hosts = !+whitelist
dnslists = ${readfile {/etc/exim4/dnsbl.conf}{:}}

require message = relay not permitted
domains = +local_domains : +relay_to_domains

deny message = smtp auth requried
sender_domains = +local_domains
!authenticated = *

require verify = recipient

.ifdef CLAMD
warn set acl_m0 = no

warn condition = ${if exists {/etc/exim4/domains/$domain/antivirus}{yes}{no}}
set acl_m0 = yes
.endif

.ifdef SPAMASSASSIN
warn set acl_m1 = no

warn condition = ${if exists {/etc/exim4/domains/$domain/antispam}{yes}{no}}
set acl_m1 = yes
.endif

accept


acl_check_data:
.ifdef CLAMD
deny message = Message contains a virus ($malware_name) and has been rejected
malware = *
condition = ${if eq{$acl_m0}{yes}{yes}{no}}
.endif

.ifdef SPAMASSASSIN
warn !authenticated = *
hosts = !+relay_from_hosts
condition = ${if < {$message_size}{100K}}
condition = ${if eq{$acl_m1}{yes}{yes}{no}}
spam = nobody:true/defer_ok
add_header = X-Spam-Score: $spam_score_int
add_header = X-Spam-Bar: $spam_bar
add_header = X-Spam-Report: $spam_report
set acl_m2 = $spam_score_int

warn condition = ${if !eq{$acl_m2}{} {yes}{no}}
condition = ${if >{$acl_m2}{SPAM_SCORE} {yes}{no}}
add_header = X-Spam-Status: Yes
message = SpamAssassin detected spam (from $sender_address to $recipients).
.endif

accept


acl_check_mime:
deny message = Blacklisted file extension detected
condition = ${if match {${lc:$mime_filename}}{\N(\.ade|\.adp|\.bat|\.chm|\.cmd|\.com|\.cpl|\.exe|\.hta|\.ins|\.isp|\.jse|\.lib|\.lnk|\.mde|\.msc|\.msp|\.mst|\.pif|\.scr|\.sct|\.shb|\.sys|\.vb|\.vbe|\.vbs|\.vxd|\.wsc|\.wsf|\.wsh)$\N}{1}{0}}

accept



######################################################################
# AUTHENTICATION CONFIGURATION #
######################################################################
begin authenticators

dovecot_plain:
driver = dovecot
public_name = PLAIN
server_socket = /var/run/dovecot/auth-client
server_set_id = $auth1

dovecot_login:
driver = dovecot
public_name = LOGIN
server_socket = /var/run/dovecot/auth-client
server_set_id = $auth1



######################################################################
# ROUTERS CONFIGURATION #
# Specifies how addresses are handled #
######################################################################
begin routers

#smarthost:
# driver = manualroute
# domains = ! +local_domains
# transport = remote_smtp
# route_list = * smartrelay.vestacp.com
# no_more
# no_verify

dnslookup:
driver = dnslookup
domains = !+local_domains
transport = remote_smtp
no_more

userforward:
driver = redirect
check_local_user
file = $home/.forward
allow_filter
no_verify
no_expn
check_ancestor
file_transport = address_file
pipe_transport = address_pipe
reply_transport = address_reply

procmail:
driver = accept
check_local_user
require_files = ${local_part}:+${home}/.procmailrc:/usr/bin/procmail
transport = procmail
no_verify

autoreplay:
driver = accept
require_files = /etc/exim4/domains/$domain/autoreply.${local_part}.msg
condition = ${if exists{/etc/exim4/domains/$domain/autoreply.${local_part}.msg}{yes}{no}}
retry_use_local_part
transport = userautoreply
unseen

aliases:
driver = redirect
headers_add = X-redirected: yes
data = ${extract{1}{:}{${lookup{$local_part@$domain}lsearch{/etc/exim4/domains/$domain/aliases}}}}
require_files = /etc/exim4/domains/$domain/aliases
redirect_router = dnslookup
pipe_transport = address_pipe
unseen

localuser_fwd_only:
driver = accept
transport = devnull
condition = ${if exists{/etc/exim4/domains/$domain/fwd_only}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/fwd_only}{true}{false}}}}

localuser_spam:
driver = accept
transport = local_spam_delivery
condition = ${if eq {${if match{$h_X-Spam-Status:}{\N^Yes\N}{yes}{no}}} {${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}{yes}{no_such_user}}}}

localuser:
driver = accept
transport = local_delivery
condition = ${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}{true}{false}}

catchall:
driver = redirect
headers_add = X-redirected: yes
require_files = /etc/exim4/domains/$domain/aliases
data = ${extract{1}{:}{${lookup{*@$domain}lsearch{/etc/exim4/domains/$domain/aliases}}}}
file_transport = local_delivery
redirect_router = dnslookup

terminate_alias:
driver = accept
transport = devnull
condition = ${lookup{$local_part@$domain}lsearch{/etc/exim4/domains/$domain/aliases}{true}{false}}



######################################################################
# TRANSPORTS CONFIGURATION #
######################################################################
begin transports

remote_smtp:
driver = smtp
#helo_data = $sender_address_domain
dkim_domain = DKIM_DOMAIN
dkim_selector = mail
dkim_private_key = DKIM_PRIVATE_KEY
dkim_canon = relaxed
dkim_strict = 0

procmail:
driver = pipe
command = "/usr/bin/procmail -d $local_part"
return_path_add
delivery_date_add
envelope_to_add
user = $local_part
initgroups
return_output

local_delivery:
driver = appendfile
maildir_format
maildir_use_size_file
user = ${extract{2}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}
group = mail
create_directory
directory_mode = 770
mode = 660
use_lockfile = no
delivery_date_add
envelope_to_add
return_path_add
directory = "${extract{5}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}/mail/$domain/$local_part"
quota = ${extract{6}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}M
quota_warn_threshold = 75%

local_spam_delivery:
driver = appendfile
maildir_format
maildir_use_size_file
user = ${extract{2}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}
group = mail
create_directory
directory_mode = 770
mode = 660
use_lockfile = no
delivery_date_add
envelope_to_add
return_path_add
directory = "${extract{5}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}/mail/$domain/$local_part/.Spam"
quota = ${extract{6}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}M
quota_directory = "${extract{5}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}/mail/$domain/$local_part"
quota_warn_threshold = 75%

address_pipe:
driver = pipe
return_output

address_file:
driver = appendfile
delivery_date_add
envelope_to_add
return_path_add

address_reply:
driver = autoreply

userautoreply:
driver = autoreply
file = /etc/exim4/domains/$domain/autoreply.${local_part}.msg
from = "${local_part}@${domain}"
headers = Content-Type: text/plain; charset=utf-8;\nContent-Transfer-Encoding: 8bit
subject = "${if def:h_Subject: {Autoreply: "${rfc2047:$h_Subject:}"} {Autoreply Message}}"
to = "${sender_address}"

devnull:
driver = appendfile
file = /dev/null

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nekr0x dijo:

Debes tener mal configurado los DNS los servidores externos te están rechanzando la conexión por no confiable.

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root@177926:/etc/exim4# cat /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4

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nekr0x dijo:

Mas bien los de tu dominio y donde sale el mail. Siempre debes mandar los correos desde un mismo dominio para que los servidores puedan resolver ese usando los PTR y en los dominios secundarios usar SPF para decir que dominio los va a mandar y DKIM de paso.

es muy seguro que tu SPF que apunta a una ip que tiene como ptr diferente al dominio del correo es el que te de el problema.

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_Sebas_ dijo:

Podría pensar que es eso, sin embargo, el server tiene de hostname zen.ivihost.com, los nameservers son ns1 y ns2.ivihost.com como varios de los servers que tengo. Y he creado incluso una cuenta tipo "soporte@ivihost.com" o incluso "avisos@zen.ivihost.com" para probar y así y todo los mails no pasan el umbral...

debo estar olvidando algo fundamental...
Si crees que lo podes resolver o queres mirar mas a fondo el asunto, puedo pagarte para arreglarlo. Avisame

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sysdop dijo:

[MENTION=175]_Sebas_[/MENTION] yo te lo puedo resolver, lo ideal es que revises que el puerto no esté bloqueado por un firewall ni tampoco que esté haciendo choques con otra cosa.

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