[postfix-es] Helo command rejected: Host not found

[che]

Hola otra vez.
(Disculpa, José Luis, hice Reply y te lo envié a ti solo, así que te 
llegará repetido)

>Salida de 'postconf -n' ???
>Casi seguro que has puesto demasiado estrictas las "smtpd_helo_restrictions"

Perdón por la omisión, aquí os lo envío.
Como os contaba, al enviar correos dice 
"450<miordenador.servidor.aaa.aaa.es>: Helo command rejected: Host not found"

Gracias de nuevo.

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
body_checks = regexp:/etc/postfix/body_checks
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
default_destination_concurrency_limit = 10
disable_dns_lookups = yes
disable_vrfy_command = yes
header_checks = regexp:/etc/postfix/header_checks
local_destination_concurrency_limit = 2
local_recipient_maps = $alias_maps unix:passwd.byname
mail_name = Postfix/MJ-1.08
mail_owner = postfix
mailbox_size_limit = 0
maximal_queue_lifetime = 1d
message_size_limit = 10485760
mydestination = $myhostname localhost.$mydomain
mydomain = aaa.aaa.es
myhostname = servidor.aaa.aaa.es
mynetworks = 127.0.0.1 XXX.XXX.XXX.0/24
myorigin = $mydomain
queue_directory = /var/spool/postfix
relay_domains = $mydomain
relayhost = [$relay]
setgid_group = postdrop
smtpd_banner = $myhostname ESMTP $mail_name ($mail_version)
smtpd_helo_required = yes
smtpd_helo_restrictions = reject_invalid_hostname reject_unknown_hostname 
reject_non_fqdn_hostname
smtpd_recipient_restrictions = permit_mynetworks reject_unauth_destination 
reject_rbl_client sbl.spamhaus.org reject_rhsbl_client relays.ordb.org 
reject_unknown_client
transport_maps = hash:/etc/postfix/transport

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