When I see mail trying to come in I get an error such as:
Jun 24 23:01:08 mmtlnx postfix/smtpd[27237]: NOQUEUE: reject: RCPT from mail.domain3.com.au[203.161.81.22]: 554 <mail.domain3.com.au[203.161.81.22]>: Client host rejected: Access denied; from=<jlmil...@domain3.com.au> to=<jlmil...@domain1.com.au> proto=ESMTP helo=<mail.domain3.com.au> Jun 24 23:01:09 mmtlnx postfix/smtpd[27237]: disconnect from mail.domain3.com.au[203.161.81.22] I know this is a valid domain This is the output of postconf -n # postconf -n alias_maps = hash:/etc/aliases biff = no canonical_maps = hash:/etc/postfix/canonical command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/lib/postfix debug_peer_level = 2 defer_transports = disable_dns_lookups = no disable_mime_output_conversion = no disable_vrfy_command = yes home_mailbox = Maildir/ html_directory = /usr/share/doc/packages/postfix/html inet_interfaces = all inet_protocols = all local_recipient_maps = hash:/etc/postfix/local_user_map 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 masquerade_classes = envelope_sender, header_sender, header_recipient masquerade_domains = mmtnetworks.com.au masquerade_exceptions = root message_size_limit = 200240000 mydestination = $myhostname $mydomain jlorenzo.com.au mydomain = mmtnetworks.com.au myhostname = mail.mmtnetworks.com.au mynetworks = 192.168.2.0/24, 127.0.0.0/8 mynetworks_style = subnet myorigin = $mydomain newaliases_path = /usr/bin/newaliases 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_client_restrictions = permit_mynetworks, reject smtpd_data_restrictions = reject_unauth_pipelining smtpd_helo_required = no smtpd_helo_restrictions = smtpd_recipient_restrictions = reject_unknown_sender_domain, permit_mynetworks, reject_unauth_destination, permit smtpd_sasl_auth_enable = no smtpd_sender_restrictions = reject_unknown_sender_domain smtpd_use_tls = no strict_8bitmime = no strict_rfc821_envelopes = no transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 550 virtual_alias_domains = virtual_alias_maps = hash:/etc/postfix/virtual Thanks Jon
