Server Correo Dovecot+Postfix

[Hector Gatica]

José Salas G wrote:
> Estimados, tengo un servidor de correo con dovecot y postfix....
>
> los correos llegan sin mayor problema, pero en el envio se demoran
> demasiado... (horas).
>
> les envio la configuracion y los log haber si me pueden ayudar un poco. se
> los agradecerìa llevo 2 dìas viendo el tema.
>
> [root en ns postfix]# postconf -n
>
> alias_database = hash:/etc/aliases
> alias_maps = hash:/etc/aliases
> command_directory = /usr/sbin
> config_directory = /etc/postfix
> daemon_directory = /usr/libexec/postfix
> debug_peer_level = 2
> html_directory = no
> inet_interfaces = all
> mail_owner = postfix
> mail_spool_directory = /var/spool/mail
> mailbox_size_limit = 00
> mailq_path = /usr/bin/mailq.postfix
> manpage_directory = /usr/share/man
> message_size_limit = 00
> mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
> mydomain = dominio.cl
> mynetworks = 0.0.0.0/0
> myorigin = $mydomain
> newaliases_path = /usr/bin/newaliases.postfix
> queue_directory = /var/spool/postfix
> readme_directory = /usr/share/doc/postfix-2.1.5/README_FILES
> relay_domains = $mydestination
> sample_directory = /usr/share/doc/postfix-2.1.5/samples
> sendmail_path = /usr/sbin/sendmail.postfix
> setgid_group = postdrop
> unknown_local_recipient_reject_code = 550
>
>
>
> #vi master.cf
>
> smtp inet n - n - - smtpd
> #submission inet n - n - - smtpd
> # -o smtpd_etrn_restrictions=reject
> # -o smtpd_client_restrictions=permit_sasl_authenticated,reject
> #smtps inet n - n - - smtpd
> # -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes
> #submission inet n - n - - smtpd
> # -o smtpd_etrn_restrictions=reject
> # -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes
> #628 inet n - n - - qmqpd
> pickup fifo n - n 60 1 pickup
> cleanup unix n - n - 0 cleanup
> qmgr fifo n - n 300 1 qmgr
> #qmgr fifo n - n 300 1 oqmgr
> tlsmgr unix - - n 1000? 1 tlsmgr
> rewrite unix - - n - - trivial-rewrite
> bounce unix - - n - 0 bounce
> defer unix - - n - 0 bounce
> trace unix - - n - 0 bounce
> verify unix - - n - 1 verify
> flush unix n - n 1000? 0 flush
> proxymap unix - - n - - proxymap
> smtp unix - - n - - smtp
> # When relaying mail as backup MX, disable fallback_relay to avoid MX loops
> relay unix - - n - - smtp
> -o fallback_relay=
> # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
> showq unix n - n - - showq
> error unix - - n - - error
> discard unix - - n - - discard
> local unix - n n - - local
> virtual unix - n n - - virtual
> lmtp unix - - n - - lmtp
> anvil unix - - n - 1 anvil
> scache unix - - n - 1 scache
> maildrop unix - n n - - pipe
> flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient}
> #
> # The Cyrus deliver program has changed incompatibly, multiple times.
> #
> old-cyrus unix - n n - - pipe
> flags=R user=cyrus argv=/usr/lib/cyrus-imapd/deliver -e -m ${extension}
> ${user}
> # Cyrus 2.1.5 (Amos Gouaux)
> # Also specify in main.cf: cyrus_destination_recipient_limit=1
> cyrus unix - n n - - pipe
> user=cyrus argv=/usr/lib/cyrus-imapd/deliver -e -r ${sender} -m
> ${extension} ${user}
> #
> # See the Postfix UUCP_README file for configuration details.
> #
> uucp unix - n n - - pipe
> flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
> ($recipient)
> #
> # Other external delivery methods.
> #
> ifmail unix - n n - - pipe
> flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
> bsmtp unix - n n - - pipe
> flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop
> $recipient
>
>
>
> Los Logs me presentan lo siguiente:
>
> Jul  4 10:10:16 ns postfix/qmgr[31744]: BCD2A20DB54:
> to=<wlchen59 en ms8.hinet.net>, relay=none, delay=98817, status=deferred
> (delivery temporarily suspended: connect to ms8a.hinet.net[168.95.5.8]:
> Connection timed out)
> Jul  4 10:10:16 ns postfix/qmgr[31744]: DB681219AD2:
> from=<liu.tzu en msa.hinet.net>, size=1823, nrcpt=3 (queue active)
> Jul  4 10:10:16 ns postfix/qmgr[31744]: DB681219AD2:
> to=<senko en ms11.hinet.net>, relay=none, delay=35817, status=deferred
> (delivery temporarily suspended: connect to ms11a.hinet.net[168.95.5.11]:
> Connection timed out)
Amigo revise si actualmente está actuando como Open Relay , tiene pinta 
de que spammers están ocupando tu smtp para envío de spam.
Si es así bajalo , arregla la configuración de postfix y súbelo , luego 
empieza a salir de las rbl a manito.

http://www.abuse.net/relay.html

Saludos.