I just installed CentOS Wiki guide for installing & configuring Postfix restrictions & was wondering what you guys thought based on what I have listed below. I just set this machine up and appears to be working great but I trust you guys since you've been doing this for a lot longer than I have:
http://wiki.centos.org/HowTos/postfix_restrictions Above is the Wiki link I followed and below is a output of my postconf -n ******************************************************************************* mail:/etc/postfix# postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no config_directory = /etc/postfix content_filter = smtp-amavis:[127.0.0.1]:10024 home_mailbox = Maildir/ inet_interfaces = all mailbox_size_limit = 0 message_size_limit = 20480000 mime_header_checks = regexp:/etc/postfix/mime_header_checks mydestination = $myhostname, $mydomain, mail.$mydomain myhostname = mynetworks = $config_directory/mynetworks readme_directory = no recipient_delimiter = + relayhost = smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit smtpd_recipient_restrictions = reject_unauth_pipelining, reject_non_fqdn_recipient, reject_unknown_recipient_domain, permit_mynetworks, reject_unauth_destination, reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net, check_policy_service unix:postgrey/socket, permit smtpd_sender_restrictions = permit_mynetworks, reject_non_fqdn_sender, reject_unknown_sender_domain, permit smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache *******************************************************************************
