I have a VPS with several virtual domains, first-one.domain1.com second-one.domain2.com and third-one.domain3.com
I can send OUT from these domains and other domains receive the emails, but when replying to those very same messages, postfix is refusing to deliver them and sends back the following error messages: Delivery to the following recipient failed permanently: du...@domain1.com <du...@whosbeenlooking.com> Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 554 554 5.7.1 <du...@domain1.com <du...@whosbeenlooking.com>>: Relay access denied (state 14). I am afraid to mess with the main.cf but have reproduced it below using postconf -n, as well as posting the output of hosts and hostname. Looking for a guru to quickly tell me what must be wrong and obvious to him/her but not to me. thanks. $ hostname: first-one.domain1.com more /etc/hosts: 127.0.0.1 localhost.localdomain localhost # Auto-generated hostname. Please do not remove this comment. first-one.domain1.com first-one output of postconf -n: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases, hash:/var/spool/postfix/plesk/aliases command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix debug_peer_level = 2 disable_vrfy_command = yes home_mailbox = Maildir/ html_directory = no inet_interfaces = all inet_protocols = all mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man message_size_limit = 10240000 mydestination = localhost.$mydomain, localhost, localhost.localdomain myhostname = first-one.domain1.com mynetworks = 127.0.0.0/8 newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES sample_directory = /usr/share/doc/postfix-2.3.3/samples sender_dependent_default_transport_maps = regexp:/etc/postfix/sdd_transport_maps.regexp sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtp_send_xforward_command = yes smtp_tls_security_level = may smtp_use_tls = no smtpd_authorized_xforward_hosts = 127.0.0.0/8 [::1]/128 smtpd_client_restrictions = smtpd_proxy_timeout = 3600s smtpd_recipient_restrictions = permit_mynetworks, check_client_access pcre:/var/spool/postfix/plesk/no_relay.re, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sender_restrictions = check_sender_access hash:/var/spool/postfix/plesk/blacklists, permit_sasl_authenticated, check_client_access pcre:/var/spool/postfix/plesk/non_auth.re smtpd_timeout = 3600s smtpd_tls_cert_file = /etc/postfix/postfix_default.pem smtpd_tls_key_file = $smtpd_tls_cert_file smtpd_tls_security_level = may smtpd_use_tls = yes unknown_local_recipient_reject_code = 550 virtual_alias_maps = $virtual_maps, hash:/var/spool/postfix/plesk/virtual virtual_gid_maps = static:31 virtual_mailbox_base = /var/qmail/mailnames virtual_mailbox_domains = $virtual_mailbox_maps, hash:/var/spool/postfix/plesk/virtual_domains virtual_mailbox_maps = hash:/var/spool/postfix/plesk/vmailbox virtual_transport = plesk_virtual virtual_uid_maps = static:110
