[Postfix-es] Problema con mensajes de rebote spam

[Juan Contreras Contreras Castro]

Estimados : Estoy usando Postfix 1.1.12, desde hace alg=FAn tiempo estoy cayendo a las
listas negras, por lo que he estado viendo al pararecer esto tiene que ver con que a mi
server llegan muchos spam a direcciones que no existen y el server los rebota en un
mailer-daemon. si me pueden ayudar en algo les estaria myu agradecido.

El resultado del comando postconf -n es :
alias_database =3D hash:/etc/aliases,hash:/etc/aliases.d/slots
alias_maps =3D hash:/etc/aliases,hash:/etc/aliases.d/slots,ldap:ldapaliases
canonical_maps =3D hash:/etc/postfix/canonical
command_directory =3D /usr/sbin
config_directory =3D /etc/postfix
daemon_directory =3D /usr/lib/postfix
debug_peer_level =3D 2
defer_transports =3D
disable_dns_lookups =3D no
disable_vrfy_command =3D yes
local_destination_concurrency_limit =3D 10
mail_spool_directory =3D /var/mail
mailbox_command =3D
mailbox_size_limit =3D 0
mailbox_transport =3D lmtp:unix:public/lmtp
mailq_path =3D /usr/bin/mailq
manpage_directory =3D /usr/share/man
maps_rbl_domains =3D cbl.abuseat.org,list.dsbl.org,sbl.spamhaus.org,pbl.spamhaus.org
masquerade_classes =3D envelope_sender, header_sender, header_recipient
masquerade_domains =3D $mydomain
masquerade_exceptions =3D root
message_size_limit =3D 30000000
mydestination =3D $myhostname, localhost.$mydomain, ldap:ldapvdom
myhostname =3D jota.cl
mynetworks =3D
200.7.60.0/24,200.7.61.0/24,200.7.62.0/24,200.7.63.0/24,200.7.65.0/24,200.7.66.0/24, 127.0.0.1
myorigin =3D $mydomain
newaliases_path =3D /usr/sbin/sendmail
readme_directory =3D /usr/share/doc/packages/postfix/README_FILES
recipient_delimiter =3D +
relayhost =3D
relocated_maps =3D hash:/etc/postfix/relocated
sample_directory =3D /usr/share/doc/packages/postfix/samples
sender_canonical_maps =3D hash:/etc/postfix/sender_canonical
sendmail_path =3D /usr/sbin/sendmail
setgid_group =3D maildrop
smtpd_client_restrictions =3D permit_sasl_authenticated, reject_maps_rbl
smtpd_helo_required =3D yes
smtpd_helo_restrictions =3D
smtpd_recipient_restrictions =3D
ldap:ldapmailenab,permit_tls_clientcerts,permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination,check_relay_domains,reject_invalid_hostname,
reject_maps_rbl,reject_non_fqdn_hostname,reject_non_fqdn_sender,reject_non_fqdn_recipient,reject_unknown_sender_domain,reject_unknown_recipient_domain,reject_unauth_pipelining,permit
smtpd_sasl_auth_enable =3D yes
smtpd_sasl_security_options =3D noanonymous
smtpd_sender_restrictions =3D hash:/etc/postfix/access
smtpd_tls_ask_ccert =3D yes
smtpd_tls_received_header =3D yes
strict_rfc821_envelopes =3D no
tls_daemon_random_source =3D dev:/dev/urandom
tls_random_source =3D dev:/dev/urandom
transport_maps =3D hash:/etc/postfix/transport,ldap:ldaptransport
virtual_maps =3D ldap:ldapvuser,hash:/etc/postfix/virtual

De antemano muchas Gracias.




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