Good day all, Some newbie help please. I have read through this how to (How To Fight Spam Using Your Postfix Configuration) and would be interested in implementing it. My concern making changes to a live system. I guess I clould backuup my main.cf and master.cf so I can revert back to them. I have a few questions regarding these suggestions. I am running a virtual server. The fqdn is vmail.bc.yourlink.ca, I am hosting for mail.nakusp.net, mail.revelstoke.net,mail.columbiacable.net which are three of our systems. These all resolve back to the 139.142.43.24 ip address I have a very simple main.cf biff = no append_dot_mydomain = no smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = vmail.bc.yourlink.ca, localhost.bc.yourlink.ca, , localhost mynetworks = 127.0.0.1,64.114.0.0/24,64.114.1.0/24,64.114.2.0/24,64.114.231.0/24,207.102.164.0/22,207.194.182.0/24,216.210.104.3,216.210.104.8/29,216.210.104.16/28,216.210.104.32/27,216.210.104.64/26,216.210.104.128/25,216.86.127.0/24,209.53.176.0/24 mailbox_command = mailbox_size_limit = 0 recipient_delimiter = + inet_protocols = all smtpd_sasl_local_domain = smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination smtpd_tls_auth_only = no smtp_use_tls = yes smtp_tls_note_starttls_offer = yes 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_alias_maps = hash:/etc/postfix/virtual smtpd_client_restrictions = reject_rbl_client relays.ordb.org smtpd_error_sleep_time = 1s smtpd_soft_error_limit = 10 smtpd_hard_error_limit = 20 message_size_limit = 5120000 my users login with user.domain, the email address is [email protected], I am not using mysql for authentication. How can I tighten up whats comming in. darcy
Thanx Thanx again - seems to be working - i will know better once I get the loggin issues sorted out so I can get a better look at the log files to check performance. WaveQam
