Greetings: I have what I expect is a simple question for you guys. Thanks to Ralphs book and the help here I have a many-year stable postfix configuration, love it, don't mess with it.
I have a very small hobby-based mailing list I maintain manually in Outlook. Although all maillist messages I send out include a footer asking the recipients to not reply to that maillist messages, the users will reply to the maillist messages occasionally and I would prefer they only reply to my other addresses. I can change the reply to address in Outlook to an invalid one, and it will reject it back to the sender with "not in virtual user table" but I don't wan that bounce message for this particular case. Instead, I would like to setup postfix so it has a more friendly reject for mail sent to (via replys to my messages) "maill...@mydomain.com" with a particular reject message that instructs the user on what address(es) to use to better contact me. Something similar to : 550 reject The email address maill...@mydomain.com does not accept inbound mail. Please use one of these addresses for contacting us: maillist unsubsubscribe: rem...@mydomain.com, support issues: supp...@mydomain.com, other i...@mydomain.com, etc. I thought maybe adding the address maill...@mydomain.com to the recipient_checks.pcre? But I don't know how to write the re if that's the right place to do this. Can someone help and tell me where is the best place to set this up? Thanks as always, Scott postconf -n: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix content_filter = smtp-amavis:[127.0.0.1]:10024 daemon_directory = /usr/libexec/postfix debug_peer_level = 2 disable_vrfy_command = yes html_directory = no inet_interfaces = $myhostname, localhost local_recipient_maps = hash:/etc/postfix/local_recipient mail_owner = postfix mail_spool_directory = /var/spool/mail mailbox_size_limit = 483886080 mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man message_size_limit = 10485760 mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain mydomain = companypostoffice.com myhostname = tn1.companypostoffice.com mynetworks = localhost,$localdomain, xx.xx.xx.xx/32, xx.xx.xx.xx/32 myorigin = $myhostname newaliases_path = /usr/bin/newaliases.postfix parent_domain_matches_subdomains = smtpd_access_maps queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.2.10/README_FILES recipient_bcc_maps = hash:/etc/postfix/recipient_bcc relay_domains = differentdomain.com relay_recipient_maps = hash:/etc/postfix/relay_recipients sample_directory = /usr/share/doc/postfix-2.2.10/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_data_restrictions = reject_unauth_pipelining, permit smtpd_helo_required = yes smtpd_recipient_limit = 1500 smtpd_recipient_restrictions = reject_invalid_hostname, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, permit_mynetworks, reject_unauth_destination, check_recipient_mx_access hash:/etc/postfix/mx_access, check_sender_mx_access hash:/etc/postfix/mx_access, reject_unknown_sender_domain, check_recipient_access pcre:/etc/postfix/recipient_checks.pcre, check_helo_access hash:/etc/postfix/helo_checks, check_sender_access hash:/etc/postfix/sender_checks, check_client_access hash:/etc/postfix/client_checks, check_client_access pcre:/etc/postfix/client_checks.pcre, reject_rbl_client list.dsbl.org, reject_rbl_client zen.spamhaus.org, reject_rbl_client dnsbl.sorbs.net, reject_rbl_client psbl.surriel.com, reject_rbl_client bl.spamcop.net, check_policy_service unix:postgrey/socket, permit smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_security_options = noanonymous smtpd_tls_CAfile = /etc/postfix/certs/cacert.pem smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/postfix/certs/postfix_public_cert.pem smtpd_tls_key_file = /etc/postfix/certs/postfix_private_key.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s smtpd_use_tls = yes soft_bounce = no tls_random_source = dev:/dev/urandom transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 550 virtual_alias_domains = hash:/etc/postfix/virtual_domains virtual_alias_maps = hash:/etc/postfix/virtual_users
