[postfix-es] error 451 Temporary lookup failure

[Simon J Mudd]

subsonic en yifan.net (Subsonic) writes:

> tail /var/log/mail/info
> 
> Jul  2 23:07:15 apollo postfix/master[23659]: daemon started -- version 2.0.6
> Jul  2 23:13:13 apollo postfix/smtpd[23679]: connect from unknown[216.55.26.70]
> Jul  2 23:13:13 apollo postfix/smtpd[23679]: C810C17679: client=unknown[216.55.26.70]
> Jul  2 23:13:14 apollo postfix/smtpd[23679]: C810C17679: reject: RCPT from unknown[216.55.26.70]: 451 <info en tuxbox.com.ar>: Temporary lookup failure; from=<subsonic en yifan.net> proto=SMTP helo=<mail.yifansoft.com>

¿Problemas de DNS?  ¿Tienes un servidor DNS en tu maquina?  ¿El
servidor DNS para _tu_ dominio está alcanzable desde dentro de tu LAN?
Si la dirección ip corresponde a un router y desde dentro este router
no contesta puede que el DNS responda de la manera que estás viendo.

> Jul  2 23:13:15 apollo postfix/cleanup[23682]: 76C371767A: message-id=<20030703021315.76C371767A en apollo.mtx.nvn>
> Jul  2 23:13:15 apollo postfix/nqmgr[23665]: 76C371767A: from=<double-bounce en apollo.mtx.nvn>, size=659, nrcpt=1 (queue active)
> Jul  2 23:13:15 apollo postfix/smtpd[23679]: disconnect from unknown[216.55.26.70]
> Jul  2 23:13:15 apollo postfix/local[23683]: 76C371767A: to=<info en apollo.mtx.nvn>, orig_to=<postmaster>, relay=local, delay=0, status=sent ("|/usr/bin/procmail -Y -a $DOMAIN")
> Jul  2 23:20:32 apollo postfix/smtpd[23703]: connect from unknown[216.55.26.70]
> Jul  2 23:20:33 apollo postfix/smtpd[23703]: 612DE176CE: client=unknown[216.55.26.70]
> Jul  2 23:20:33 apollo postfix/smtpd[23703]: 612DE176CE: reject: RCPT from unknown[216.55.26.70]: 451 <info en tuxbox.com.ar>: Temporary lookup failure; from=<subsonic en yifan.net> proto=SMTP helo=<mail.yifansoft.com>
> Jul  2 23:20:35 apollo postfix/cleanup[23706]: 10F9C176CF: message-id=<20030703022035.10F9C176CF en apollo.mtx.nvn>
> Jul  2 23:20:35 apollo postfix/nqmgr[23665]: 10F9C176CF: from=<double-bounce en apollo.mtx.nvn>, size=659, nrcpt=1 (queue active)
> Jul  2 23:20:35 apollo postfix/smtpd[23703]: disconnect from unknown[216.55.26.70]
> Jul  2 23:20:35 apollo postfix/local[23707]: 10F9C176CF: to=<info en apollo.mtx.nvn>, orig_to=<postmaster>, relay=local, delay=0, status=sent ("|/usr/bin/procmail -Y -a $DOMAIN")

> postconf -n
> alias_database = hash:/etc/postfix/aliases
> alias_maps = hash:/etc/postfix/aliases
> body_checks = regexp:/etc/postfix/body_checks
> command_directory = /usr/sbin
> config_directory = /etc/postfix
> daemon_directory = /usr/lib/postfix
> debug_peer_level = 2
> delay_warning_time = 4
> header_checks = regexp:/etc/postfix/header_checks
> inet_interfaces = all
> local_recipient_maps = $alias_maps unix:passwd.byname
> mail_owner = postfix
> mail_spool_directory = /var/spool/mail
> mailbox_command = /usr/bin/procmail -Y -a $DOMAIN
> mailq_path = /usr/bin/mailq.postfix
> manpage_directory = /usr/share/man
> mydestination = $myhostname, localhost.$mydomain, $mydomain
> mydomain = tuxbox.com.ar
> myhostname = apollo.mtx.nvn
> mynetworks = 127.0.0.1, 10.0.0.0/8
> newaliases_path = /usr/bin/newaliases.postfix
> queue_directory = /var/spool/postfix
> readme_directory = /usr/share/doc/postfix-2.0.6/README_FILES
> sample_directory = /usr/share/doc/postfix-2.0.6/samples
> sendmail_path = /usr/sbin/sendmail.postfix
> setgid_group = postdrop
> smtpd_banner = ESMTP (Linuix)
> smtpd_recipient_restrictions = permit_mynetworks reject_unauth_destination
> unknown_local_recipient_reject_code = 450

No veo nada obvio que es incorrecto.  Quizá te va a decir más
habilitar el -v en master.cf para smtpd.  Esto al menos te dirá que
"lookup failure" está ocurriendo ya que no es obvio de los logs que
has mostrado.

Simon
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