Hello, A client has a domain (sample.com) which resolves to the IP 190.190.168.54 The MX records this domain point to another IP completely different: 64.233.171.27
My postfix server houses the domain someotherdomain.com, the problem is that I am unable to send email to my clients domain. When I look in the log files, I see that postfix is trying to send the email to the HOST and not the MX servers. Sep 8 11:04:40 mailserver postfix/smtp[23528]: C6B494C421D: to=< [EMAIL PROTECTED]>, relay=none, delay=1, status=deferred (connect to sample.com[190.190.168.54]: Connection refused) The DNS table looks like @ A 190.190.168.54 @ MX 1 aspmx.l.google.com. @ MX 5 alt1.aspmx.l.google.com. @ MX 5 alt2.aspmx.l.google.com. @ MX 10 aspmx2.googlemail.com. @ MX 10 aspmx3.googlemail.com. @ MX 10 aspmx4.googlemail.com. @ MX 10 aspmx5.googlemail.com. When I resolve using TYPE=MX all looks fine, in fact the client is able to receive email from other severs except this one postfix. Why is the postfix server trying to connect to the host (web server) instead of the mail servers? postconf -n produces: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no config_directory = /etc/postfix inet_interfaces = all mail_spool_directory = /var/mail/ mailbox_size_limit = 0 mydestination = localhost myhostname = mailserver.someotherdomain.com mynetworks = 127.0.0.0/8,201.218.24.200/29 myorigin = /etc/mailname recipient_delimiter = + relayhost = smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache smtpd_use_tls = yes PS. Sometimes (not often) the postfix servers delivers email succesfully, but it is less than 25% of the time. Thanks.