[postfix-es] Problemas con el envio de mail

[mjgacto en ugr.es]

1. Una descripción del problema

He configurado postfix para enviar un email de forma automatica como
respuesta a un formulario desde una
página web. Y usando el comando mailq me muestra el siguiente mensaje de
error:

# mailq
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
40F4816CCEB      499 Thu Mar 26 17:10:23  wwwrun
                                         miusuario en dominio.es
                                         miusuario en dominio.es

-- 0 Kbytes in 1 Request.

Pienso que igual es un problema de la configuración de smtp de salida (he
usado MTA de Suse 9),

2. La versión de Postfix usada (usa el comando postconf -d mail_version)
 # postconf -d mail_version
mail_version = 2.1.5

3. ¿Cómo está instalado Postfix? (paquete deb, rpm o desde fuentes)
El instalado por defecto en SuSe 9
4. ¿Software/parches adicionales que estás usando? (SASL, TLS, MySQL, ...)
 sasl y mysql

5. Los registros del archivo log que corresponden a 3.1.

6. La salida del comando postconf -n (cambios de configuración)
# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
biff = no
broken_sasl_auth_clients = yes
canonical_maps = hash:/etc/postfix/canonical
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = vscan:
daemon_directory = /usr/lib/postfix
debug_peer_level = 2
default_process_limit = 10
defer_transports =
disable_dns_lookups = no
header_checks = regexp:/etc/postfix/regexp_intruders
html_directory = /usr/share/doc/packages/postfix/html
inet_interfaces = 127.0.0.1 ::1
local_recipient_maps = $alias_maps unix:passwd.byname
mail_name = Postfix on SuSe Linux 9.0
mail_owner = postfix
mail_spool_directory = /var/mail
mailbox_command =
mailbox_size_limit = 0
mailbox_transport =
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maps_rbl_domains = relays.ordb.org,dnsbl.njabl.org
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_domains = midominio.es
masquerade_exceptions = root
message_size_limit = 10240000
mydestination = $myhostname, localhost.$mydomain, $mydomain
myhostname = miserver.midominio.es
mynetworks_style = subnet
myorigin = $mydomain
newaliases_path = /usr/sbin/newaliases mailq_path: The full pathname of
the Postfix mailq command.  This
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/packages/postfix/README_FILES
relay_domains = $mydestination
relayhost =
relocated_maps = hash:/etc/postfix/relocated
sample_directory = /usr/share/doc/packages/postfix/samples
sender_canonical_maps = hash:/etc/postfix/sender_canonical
sendmail_path = /usr/sbin/sendmail
setgid_group = maildrop
smtp_sasl_auth_enable = no
smtp_use_tls = no
smtpd_banner = $myhostname ESMTP $mail_name ($mail_version)
smtpd_client_restrictions =
smtpd_helo_required = yes
smtpd_helo_restrictions =
smtpd_recipient_restrictions = reject_non_fqdn_sender,
reject_non_fqdn_recipient, permit_mynetworks, permit_sasl_authenticated,
reject_unauth_destination, reject_unauth_pipelining,
reject_invalid_hostname, reject_non_fqdn_hostname, reject_maps_rbl,
warn_if_reject reject_unknown_licent, permit
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $mydomain
smtpd_sasl_security_options = noanonymous
smtpd_sender_login_maps = hash:/etc/postfix/login_auth
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_use_tls = no
strict_rfc821_envelopes = yes
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550