Spam Experts Help

cPanel/WHM IP-based Authentication

  1. Navigate to "Exim Configuration Editor" in WHM.
  2. Choose "Advanced Editor".
  3. Add the following to "Section: POSTMAILCOUNT" (chaning SMARTHOST to your SMTP hostname)
  4. smarthost_dkim:
      driver = manualroute
      domains = !+local_domains
      require_files = "+/var/cpanel/domain_keys/private/${sender_address_domain}"
      # Exclude null sender messages from relaying via the smarthost
      condition = ${if or {{!eq{$sender_address}{}} {!eq{$sender_host_address}{}}}}
      transport = remote_smtp_smart_dkim
      route_list = $domain SMARTHOST::587

    smarthost_regular:
      driver = manualroute
      domains = !+local_domains
      # Exclude null sender messages from relaying via the smarthost
      condition = ${if or {{!eq{$sender_address}{}} {!eq{$sender_host_address}{}}}}
      transport = remote_smtp_smart_regular
      route_list = $domain SMARTHOST::587

    Replace SMARTHOST with your SMTP hostname.

  5. Add the following in "Section: TRANSPORTSTART" :
  6. remote_smtp_smart_dkim:
      driver = smtp
      hosts_require_tls = *
      interface = ${if exists {/etc/mailips}{${lookup{$sender_address_domain}lsearch*{/etc/mailips}{$value}{}}}{}}
      helo_data = ${if exists {/etc/mailhelo}{${lookup{$sender_address_domain}lsearch*{/etc/mailhelo}{$value}{$primary_hostname}}}{$primary_hostname}}
      dkim_domain = $sender_address_domain
      dkim_selector = default
      dkim_private_key = "/var/cpanel/domain_keys/private/${dkim_domain}"
      dkim_canon = relaxed
    headers_add = "${perl{check_mail_permissions_headers}}"
     
    remote_smtp_smart_regular:
      driver = smtp
      hosts_require_tls = *
      interface = ${if exists {/etc/mailips}{${lookup{$sender_address_domain}lsearch*{/etc/mailips}{$value}{}}}{}}
      helo_data = ${if exists {/etc/mailhelo}{${lookup{$sender_address_domain}lsearch*{/etc/mailhelo}{$value}{$primary_hostname}}}{$primary_hostname}}
    headers_add = "${perl{check_mail_permissions_headers}}"

  7. Save and restart.
  8. All traffic from the cPanel/WHM server will be routed to the Spam Experts filtering nodes.