Use a letsencrypt certificate for the main mail server

[chef.git] / cookbooks / exim / templates / default / exim4.conf.erb

diff --git a/cookbooks/exim/templates/default/exim4.conf.erb b/cookbooks/exim/templates/default/exim4.conf.erb
index 52816e7fa5b79fe32f748df78b03b9424271f1d4..18544c091746dbd64a3153e3385f0b1c2ee1a49a 100644 (file)
--- a/cookbooks/exim/templates/default/exim4.conf.erb
+++ b/cookbooks/exim/templates/default/exim4.conf.erb
@@ -146,14 +146,23 @@ spamd_address = 127.0.0.1 783
 
 tls_advertise_hosts = <; !127.0.0.1 ; !::1
 
+# Configured TLS cipher selection.
+
+tls_require_ciphers = <%= node[:ssl][:gnutls_ciphers] %>:%SERVER_PRECEDENCE
+
 # Specify the location of the Exim server's TLS certificate and private key.
 # The private key must not be encrypted (password protected). You can put
 # the certificate and private key in the same file, in which case you only
 # need the first setting, or in separate files, in which case you need both
 # options.
 
+<% if node[:exim][:certificate_names] -%>
+tls_certificate = /etc/ssl/certs/<%= node[:exim][:certificate_names].first %>.pem
+tls_privatekey = /etc/ssl/private/<%= node[:exim][:certificate_names].first %>.key
+<% else -%>
 tls_certificate = /etc/ssl/certs/exim.pem
 tls_privatekey = /etc/ssl/private/exim.key
+<% end -%>
 
 # In order to support roaming users who wish to send email from anywhere,
 # you may want to make Exim listen on other ports as well as port 25, in
@@ -306,6 +315,12 @@ log_selector = +all -skip_delivery
 trusted_users = <%= node[:exim][:trusted_users].join(" : ") %>
 
 
+# Don't keep any environment when starting programs - this is the
+# default but setting it stops exim warning
+
+keep_environment =
+
+
 
 ######################################################################
 #                       ACL CONFIGURATION                            #
@@ -324,9 +339,7 @@ acl_check_rcpt:
   # testing for an empty sending host field.
 
   accept  hosts = :
-<% if node[:lsb][:release].to_i >= 10.04 -%>
           control = dkim_disable_verify
-<% end -%>
 
   #############################################################################
   # The following section of the ACL is concerned with local parts that contain
@@ -371,9 +384,20 @@ acl_check_rcpt:
 
   deny    message       = Restricted characters in address
           domains       = !+local_domains
-          local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
+          local_parts   = ^[./|] : ^.*[@!] : ^.*/\\.\\./
   #############################################################################
 
+  # Block bounces to selected addresses
+
+  deny    local_parts   = root:postmaster:webmaster:abuse:support
+          senders       = :
+
+  # Block blacklisted senders
+
+  deny    senders       = lsearch*@;/etc/exim4/blocked-senders
+          message       = Rejected because $sender_address is blacklisted\nQueries to postmaster@$qualify_domain
+          !hosts        = +relay_from_hosts
+
   # Accept mail to postmaster in any local domain, regardless of the source,
   # and without verifying the sender.
 
@@ -385,10 +409,6 @@ acl_check_rcpt:
   deny   !hosts         = +relay_from_hosts
          !verify        = sender
 
-  deny   !hosts         = +relay_from_hosts
-         !senders       = lsearch*@;/etc/exim4/callout_exempt_senders
-         !verify        = sender/callout/defer_ok
-
   # Accept if the message comes from one of the hosts for which we are an
   # outgoing relay. It is assumed that such hosts are most likely to be MUAs,
   # so we set control=submission to make Exim treat the message as a
@@ -410,9 +430,7 @@ acl_check_rcpt:
 
   accept  hosts         = +relay_from_hosts
           control       = submission
-<% if node[:lsb][:release].to_i >= 10.04 -%>
           control       = dkim_disable_verify
-<% end -%>
 
   # Accept if the message arrived over an authenticated connection, from
   # any host. Again, these messages are usually from MUAs, so recipient
@@ -421,9 +439,7 @@ acl_check_rcpt:
 
   accept  authenticated = *
           control       = submission
-<% if node[:lsb][:release].to_i >= 10.04 -%>
           control       = dkim_disable_verify
-<% end -%>
 
   # Insist that any other recipient address that we accept is either in one of
   # our local domains, or is in a domain for which we explicitly allow
@@ -491,6 +507,13 @@ acl_check_data:
           message    = This message scored $spam_score SpamAssassin points.
 
 <% end -%>
+  # Deny spammy messages with headers of the form:
+  #   X-PHP-Originating-Script: <digits>:<name>.php
+  #   X-PHP-Originating-Script: <digits>:<name>.class.php
+  deny    condition  = ${if match {$h_X-PHP-Originating-Script:}{^[0-9]+:[A-Za-z]+(\\.class)?\\.php\$}}
+         !hosts      = +relay_from_hosts
+          message    = This message failed local spam checks.
+
   # Accept the message.
 
   accept
@@ -529,7 +552,7 @@ begin routers
 
 system_aliases:
   driver = redirect
-  domains = +local_domains
+  domains = !noreply.openstreetmap.org : +local_domains
   allow_fail
   allow_defer
   data = ${lookup{$local_part}lsearch{/etc/aliases}}
@@ -575,6 +598,8 @@ noreply:
 <% end -%>
 <% if details[:local_parts] -%>
   local_parts = <%= details[:local_parts].join(" : ") %>
+  local_part_suffix = +*
+  local_part_suffix_optional
 <% end -%>
 <% if details[:host] -%>
 <% if details[:host].kind_of?(Array) -%>
@@ -641,6 +666,8 @@ begin transports
 
 remote_smtp:
   driver = smtp
+  multi_domain = false
+  tls_require_ciphers = <%= node[:ssl][:gnutls_ciphers] %>:%LATEST_RECORD_VERSION
 
 
 # This transport is used for handling pipe deliveries generated by alias or
@@ -705,7 +732,8 @@ noreply:
   driver = pipe
   command = <%= details[:command] %>
   home_directory = <%= details[:home_directory] %>
-  return_output
+  path = <%= details[:path] || "/bin:/usr/bin" %>
+  return_fail_output
 <% else -%>
   driver = appendfile
 <% if details[:file] -%>
@@ -758,6 +786,10 @@ begin retry
 # There are no rewriting specifications in this default configuration file.
 
 begin rewrite
+*@<%= node[:fqdn] %> "${if !match {${lookup{$1}lsearch{/etc/aliases}{$value}}}{@} {$1@openstreetmap.org}fail}" Eh
+<% node[:exim][:rewrites].each do |rewrite| -%>
+<%= rewrite[:pattern] %> <%= rewrite[:replacement] %> <%= rewrite[:flags] %>
+<% end -%>