I have modified my /etc/postfix/main.cf file to prevent spam. Could someone glance over it to make sure I'm not blocking anyone I shouldn't or any suggestions? Thanks. Code: readme_directory = /usr/share/doc/packages/postfix/README_FILES biff = no mail_spool_directory = /var/mail canonical_maps = hash:/etc/postfix/canonical #virtual_maps = hash:/etc/postfix/virtual relocated_maps = hash:/etc/postfix/relocated transport_maps = hash:/etc/postfix/transport sender_canonical_maps = hash:/etc/postfix/sender_canonical masquerade_exceptions = root masquerade_classes = envelope_sender, header_sender, header_recipient myhostname = ******.$mydomain program_directory = /usr/lib/postfix inet_interfaces = all masquerade_domains = #mydestination = $myhostname, localhost.$mydomain defer_transports = disable_dns_lookups = no relayhost = mailbox_command = mailbox_transport = smtpd_sender_restrictions = hash:/etc/postfix/access smtpd_sender_restrictions = reject_unknown_address, reject_unknown_address smtpd_client_restrictions = smtpd_client_restrictions = hash:/etc/postfix/access, reject_maps_rbl smtpd_client_restrictions = permit_mynetworks, reject_unknown_client smtpd_helo_required = yes smtpd_delay_reject = yes smtpd_helo_restrictions = permit_mynetworks, check_helo_access hash:/etc/postfix/access, reject_invalid_hostname, permit strict_rfc821_envelopes = no smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,check_relay_domains smtp_sasl_auth_enable = no smtpd_sasl_auth_enable = yes smtpd_use_tls = yes smtp_use_tls = yes alias_maps = hash:/etc/aliases mailbox_size_limit = 0 message_size_limit = 10240000 mydomain = rwhm.net smtpd_sasl_local_domain = smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_tls_auth_only = no smtp_tls_note_starttls_offer = yes smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom home_mailbox = Maildir/ virtual_maps = hash:/etc/postfix/virtusertable mydestination = /etc/postfix/local-host-names
