Hi to all the first sorry for my English I installed a postfix in linux box.
This postfix receive mail from enchange server, after when postfix is delivered mails to sender return this error This is occur in two or four domains, the rest of domain is OK said: 550 5.1.0 ayzv1j0290XamjW01yzvcg dominio non valido / invalid domain (in reply to MAIL FROM command)) postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no config_directory = /etc/postfix inet_interfaces = all mailbox_size_limit = 0 mydestination = smtp1.clickonline.es, localhost.clickonline.es , localhost myhostname = smtp1.clickonline.es mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 213.27.204.231/32 213.27.204.244/32 myorigin = /etc/mailname readme_directory = no recipient_delimiter = + relay_domains = $mydestination clickonline.es relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes transport_maps = hash:/etc/postfix/transport Please help me. Regards