Merge branch 'master' of git://gaffer.ptitcanardnoir.org/puppet-module-postfix into reviewreview

12 files changed, 439 insertions, 8 deletions

diff --git a/README b/README
index 964125f..337193f 100644
--- a/README
+++ b/README
@@ -4,6 +4,12 @@ This module will help install and configure postfix.
 
 A couple of classes will preconfigure postfix for common needs.
 
+Config
+------
+- set $postfix_use_amavisd="yes" to include postfix::amavis
+- set $postfix_manage_tls_policy="yes" to manage TLS policy (see
+  postfix::tlspolicy for details)
+
 == Example:
 
   include postfix
diff --git a/files/tls_policy.d/.ignore b/files/tls_policy.d/.ignore
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/files/tls_policy.d/.ignore
diff --git a/manifests/classes/postfix-amavis.pp b/manifests/classes/postfix-amavis.pp
new file mode 100644
index 0000000..7e17836
--- /dev/null
+++ b/manifests/classes/postfix-amavis.pp
@@ -0,0 +1,6 @@
+class postfix::amavis {
+  include amavisd-new
+  postfix::config {
+    "content_filter": value => "amavis:[127.0.0.1]:10024";
+  }
+}
diff --git a/manifests/classes/postfix-mta.pp b/manifests/classes/postfix-mta.pp
index 16b1981..c36c0bc 100644
--- a/manifests/classes/postfix-mta.pp
+++ b/manifests/classes/postfix-mta.pp
@@ -32,9 +32,9 @@
 #
 class postfix::mta {
 
-  case $postfix_relayhost {
-    "":   { fail("Required \$postfix_relayhost variable is not defined.") }
-  }
+  #case $postfix_relayhost {
+  #  "":   { fail("Required \$postfix_relayhost variable is not defined.") }
+  #}
 
   case $postfix_mydestination {
     "": { $postfix_mydestination = "\$myorigin" }
diff --git a/manifests/classes/postfix-tlspolicy.pp b/manifests/classes/postfix-tlspolicy.pp
new file mode 100644
index 0000000..30b1f58
--- /dev/null
+++ b/manifests/classes/postfix-tlspolicy.pp
@@ -0,0 +1,68 @@
+#
+# == Class: postfix::tlspolicy
+#
+# Manages Postfix TLS policy by merging policy snippets shipped:
+# - in the module's files/tls_policy.d/
+# - via postfix::tlspolicy_snippet defines
+#
+# Parameters:
+# - $postfix_tls_fingerprint_digest (defaults to sha1)
+#
+# Example usage:
+# 
+#   node "toto.example.com" {
+#     $postfix_manage_tls_policy = yes
+#     include postfix
+#   }
+#
+class postfix::tlspolicy {
+
+  # Default value for parameters
+  case $postfix_tls_fingerprint_digest {
+    "": { $postfix_tls_fingerprint_digest = 'sha1' }
+  }
+
+  include common::moduledir
+  module_dir{'postfix/tls_policy': }
+
+  $postfix_tlspolicy_dir          = "${common::moduledir::module_dir_path}/postfix/tls_policy"
+  $postfix_tlspolicy_snippets_dir = "${postfix_tlspolicy_dir}/tls_policy.d"
+  $postfix_merged_tlspolicy       = "${postfix_tlspolicy_dir}/merged_tls_policy"
+
+  file {"$postfix_tlspolicy_snippets_dir":
+    ensure  => 'directory',
+    owner   => 'root',
+    group   => '0',
+    mode    => '700',
+    source  => [
+                "puppet:///modules/site-postfix/${fqdn}/tls_policy.d",
+                "puppet:///modules/site-postfix/tls_policy.d",
+                "puppet:///modules/postfix/tls_policy.d"
+               ],
+    recurse => true,
+    purge   => false,
+  }
+
+  concatenated_file { "$postfix_merged_tlspolicy":
+    dir     => "${postfix_tlspolicy_snippets_dir}",
+    require => File["$postfix_tlspolicy_snippets_dir"],
+  }
+
+  postfix::hash { '/etc/postfix/tls_policy':
+    source    => "$postfix_merged_tlspolicy",
+    subscribe => File["$postfix_merged_tlspolicy"],
+  }
+
+  postfix::config {
+    'smtp_tls_fingerprint_digest': value => "$postfix_tls_fingerprint_digest";
+  }
+
+  postfix::config { 'smtp_tls_policy_maps':
+    value   => 'hash:/etc/postfix/tls_policy',
+    require => [
+                Postfix::Hash['/etc/postfix/tls_policy'],
+                Postfix::Config['smtp_tls_fingerprint_digest'],
+               ],
+  }
+
+}
diff --git a/manifests/classes/postfix.pp b/manifests/classes/postfix.pp
index 1d60a57..588bfc8 100644
--- a/manifests/classes/postfix.pp
+++ b/manifests/classes/postfix.pp
@@ -5,13 +5,13 @@
 # delivery and an SMTP server listening on the loopback interface.
 #
 # Parameters:
-# - *$postfix_ng_smtp_listen*: address on which the smtp service will listen to. defaults to 127.0.0.1
+# - *$postfix_smtp_listen*: address on which the smtp service will listen to. defaults to 127.0.0.1
 # - *$root_mail_recipient*: who will recieve root's emails. defaults to "nobody"
 #
 # Example usage:
 #
 #   node "toto.example.com" {
-#     $postfix_ng_smtp_listen = "192.168.1.10"
+#     $postfix_smtp_listen = "192.168.1.10"
 #     include postfix
 #   }
 #
@@ -40,12 +40,45 @@ class postfix {
   case $root_mail_recipient {
     "":   { $root_mail_recipient = "nobody" }
   }
+  case $postfix_manage_tls_policy {
+    "":   { $postfix_manage_tls_policy = "no" }
+  }
+  case $postfix_use_amavisd {
+    "":   { $postfix_use_amavisd = "no" }
+  }
+  case $postfix_use_dovecot_lda {
+    "":   { $postfix_use_dovecot_lda = "no" }
+  }
+  case $postfix_use_schleuder {
+    "":   { $postfix_use_schleuder = "no" }
+  }
+  case $postfix_use_sympa {
+    "":   { $postfix_use_sympa = "no" }
+  }
+  case $postfix_mastercf_tail {
+    "":   { $postfix_mastercf_tail = "" }
+  }
 
+  # Bootstrap moduledir
+  include common::moduledir
+  module_dir{'postfix': }
+
+  # Include optional classes
+  if $postfix_manage_tls_policy == 'yes' {
+    include postfix::tlspolicy
+  }
+  if $postfix_use_amavisd == 'yes' {
+    include postfix::amavis
+  }
 
   package { ["postfix", "mailx"]:
     ensure => installed
   }
 
+  if $operatingsystem == 'debian' {
+    Package[mailx] { name => 'bsd-mailx' }
+  }
+
   service { "postfix":
     ensure  => running,
     require => Package["postfix"],
@@ -83,7 +116,7 @@ class postfix {
     content => $operatingsystem ? {
       Redhat => template("postfix/master.cf.redhat5.erb"),
       CentOS => template("postfix/master.cf.redhat5.erb"),
-      Debian => template("postfix/master.cf.debian-etch.erb"),
+      Debian => template("postfix/master.cf.debian-$lsbdistcodename.erb"),
       Ubuntu => template("postfix/master.cf.debian-etch.erb"),
     },
     seltype => $postfix_seltype,
diff --git a/manifests/definitions/config.pp b/manifests/definitions/config.pp
index aaf73b5..8e203a6 100644
--- a/manifests/definitions/config.pp
+++ b/manifests/definitions/config.pp
@@ -34,8 +34,8 @@ define postfix::config ($ensure = present, $value, $nonstandard = false) {
     present: {
       exec {"postconf -e ${name}='${value}'":
         unless  => $nonstandard ? {
-          false => "test \"x$(postconf -h ${name})\" == 'x${value}'",
-          true  => "test \"x$(egrep '^${name} ' /etc/postfix/main.cf | cut -d= -f2 | cut -d' ' -f2)\" == 'x${value}'",
+          false => "test \"x$(postconf -h ${name})\" = 'x${value}'",
+          true  => "test \"x$(egrep '^${name} ' /etc/postfix/main.cf | cut -d= -f2 | cut -d' ' -f2)\" = 'x${value}'",
         },
         notify  => Service["postfix"],
         require => File["/etc/postfix/main.cf"],
diff --git a/manifests/definitions/tlspolicy_snippet.pp b/manifests/definitions/tlspolicy_snippet.pp
new file mode 100644
index 0000000..2596dbc
--- /dev/null
+++ b/manifests/definitions/tlspolicy_snippet.pp
@@ -0,0 +1,47 @@
+/*
+== Definition: postfix::tlspolicy_snippet
+
+Adds a TLS policy snippets to /etc/postfix/tls_policy.d/.
+See the postfix::tlspolicy class for details.
+
+Parameters:
+- *name*: name of destination domain Postfix will lookup. See TLS_README.
+- *value*: right-hand part of the tls_policy map
+- *ensure*: present/absent, defaults to present.
+
+Requires:
+- Class["postfix"]
+- Class["postfix::tlspolicy"]
+
+Example usage:
+
+  node "toto.example.com" {
+    $postfix_manage_tls_policy = yes
+    include postfix
+    postfix::tlspolicy_snippet {
+      'example.com':  value => 'encrypt';
+      '.example.com': value => 'encrypt';
+      'nothing.com':  value => 'fingerprint match=2A:FF:F0:EC:52:04:99:45:73:1B:C2:22:7F:FD:31:6B:8F:07:43:29';
+    }
+  }
+
+*/
+
+define postfix::tlspolicy_snippet ($ensure="present", $value = false) {
+
+  include postfix::tlspolicy
+
+  if ($value == false) and ($ensure == "present") {
+    fail("The value parameter must be set when using the postfix::tlspolicy_snippet define with ensure=present.")
+  }
+
+  file { "${postfix::tlspolicy::postfix_tlspolicy_snippets_dir}/${name}":
+    ensure  => "$ensure",
+    content => "${name}		${value}\n",
+    mode    => 600,
+    owner   => root,
+    group   => 0,
+    notify => Exec["concat_${postfix::tlspolicy::postfix_merged_tlspolicy}"],
+  }
+
+}
diff --git a/templates/master.cf.debian-etch.erb b/templates/master.cf.debian-etch.erb
index e6bc4ec..4b39f45 100644
--- a/templates/master.cf.debian-etch.erb
+++ b/templates/master.cf.debian-etch.erb
@@ -108,3 +108,7 @@ sympa        unix  -       n       n       -       -       pipe
 sympabounce  unix  -       n       n       -       -       pipe
   flags=R user=sympa argv=/usr/lib/sympa/bin/bouncequeue ${user}
 <% end %>
+
+<%- unless postfix_mastercf_tail.to_s.empty? then -%>
+<%= postfix_mastercf_tail %>
+<%- end -%>
diff --git a/templates/master.cf.debian-lenny.erb b/templates/master.cf.debian-lenny.erb
new file mode 100644
index 0000000..11d0fa0
--- /dev/null
+++ b/templates/master.cf.debian-lenny.erb
@@ -0,0 +1,120 @@
+# file managed by puppet
+#
+# Postfix master process configuration file.  For details on the format
+# of the file, see the master(5) manual page (command: "man 5 master").
+#
+# Do not forget to execute "postfix reload" after editing this file.
+#
+# ==========================================================================
+# service type  private unpriv  chroot  wakeup  maxproc command + args
+#               (yes)   (yes)   (yes)   (never) (100)
+# ==========================================================================
+<% if postfix_smtp_listen == 'all' %>smtp      inet  n       -       -       -       -       smtpd
+<% else %><%= postfix_smtp_listen %>:smtp      inet  n       -       -       -       -       smtpd<% end %>
+#submission inet n       -       -       -       -       smtpd
+#  -o smtpd_tls_security_level=encrypt
+#  -o smtpd_sasl_auth_enable=yes
+#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
+#  -o milter_macro_daemon_name=ORIGINATING
+#smtps     inet  n       -       -       -       -       smtpd
+#  -o smtpd_tls_wrappermode=yes
+#  -o smtpd_sasl_auth_enable=yes
+#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
+#  -o milter_macro_daemon_name=ORIGINATING
+#628      inet  n       -       -       -       -       qmqpd
+pickup    fifo  n       -       -       60      1       pickup
+cleanup   unix  n       -       -       -       0       cleanup
+qmgr      fifo  n       -       n       300     1       qmgr
+#qmgr     fifo  n       -       -       300     1       oqmgr
+tlsmgr    unix  -       -       -       1000?   1       tlsmgr
+rewrite   unix  -       -       -       -       -       trivial-rewrite
+bounce    unix  -       -       -       -       0       bounce
+defer     unix  -       -       -       -       0       bounce
+trace     unix  -       -       -       -       0       bounce
+verify    unix  -       -       -       -       1       verify
+flush     unix  n       -       -       1000?   0       flush
+proxymap  unix  -       -       n       -       -       proxymap
+proxywrite unix -       -       n       -       1       proxymap
+smtp      unix  -       -       -       -       -       smtp
+# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
+relay     unix  -       -       -       -       -       smtp
+        -o smtp_fallback_relay=
+#       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
+showq     unix  n       -       -       -       -       showq
+error     unix  -       -       -       -       -       error
+retry     unix  -       -       -       -       -       error
+discard   unix  -       -       -       -       -       discard
+local     unix  -       n       n       -       -       local
+virtual   unix  -       n       n       -       -       virtual
+lmtp      unix  -       -       -       -       -       lmtp
+anvil     unix  -       -       -       -       1       anvil
+scache    unix  -       -       -       -       1       scache
+#
+# ====================================================================
+# Interfaces to non-Postfix software. Be sure to examine the manual
+# pages of the non-Postfix software to find out what options it wants.
+#
+# Many of the following services use the Postfix pipe(8) delivery
+# agent.  See the pipe(8) man page for information about ${recipient}
+# and other message envelope options.
+# ====================================================================
+#
+# maildrop. See the Postfix MAILDROP_README file for details.
+# Also specify in main.cf: maildrop_destination_recipient_limit=1
+#
+maildrop  unix  -       n       n       -       -       pipe
+  flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
+#
+# See the Postfix UUCP_README file for configuration details.
+#
+uucp      unix  -       n       n       -       -       pipe
+  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
+#
+# Other external delivery methods.
+#
+ifmail    unix  -       n       n       -       -       pipe
+  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
+bsmtp     unix  -       n       n       -       -       pipe
+  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
+scalemail-backend unix  -       n       n       -       2       pipe
+  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
+mailman   unix  -       n       n       -       -       pipe
+  flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
+  ${nexthop} ${user}
+<% if postfix_use_amavisd == 'yes' %>
+amavis unix - - - - 2 smtp
+        -o smtp_data_done_timeout=1200
+        -o smtp_send_xforward_command=yes
+
+127.0.0.1:10025 inet n - - - - smtpd
+        -o content_filter=
+        -o local_recipient_maps=
+        -o relay_recipient_maps=
+        -o smtpd_restriction_classes=
+        -o smtpd_client_restrictions=
+        -o smtpd_helo_restrictions=
+        -o smtpd_sender_restrictions=
+        -o smtpd_recipient_restrictions=permit_mynetworks,reject
+        -o mynetworks=127.0.0.0/8
+        -o strict_rfc821_envelopes=yes
+        -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
+        -o smtpd_bind_address=127.0.0.1
+<% end %>
+<% if postfix_use_dovecot_lda == 'yes' %>
+dovecot   unix  -       n       n       -       -       pipe
+  flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${recipient}
+<% end %>
+<% if postfix_use_schleuder == 'yes' %>
+schleuder  unix  -       n       n       -       -       pipe
+  flags=DRhu user=schleuder argv=/usr/bin/schleuder ${user}
+<% end %>
+<% if postfix_use_sympa == 'yes' %>
+sympa        unix  -       n       n       -       -       pipe
+  flags=R user=sympa argv=/usr/lib/sympa/bin/queue ${recipient}
+sympabounce  unix  -       n       n       -       -       pipe
+  flags=R user=sympa argv=/usr/lib/sympa/bin/bouncequeue ${user}
+<% end %>
+
+<%- unless postfix_mastercf_tail.to_s.empty? then -%>
+<%= postfix_mastercf_tail %>
+<%- end -%>
diff --git a/templates/master.cf.debian-squeeze.erb b/templates/master.cf.debian-squeeze.erb
new file mode 100644
index 0000000..be86a08
--- /dev/null
+++ b/templates/master.cf.debian-squeeze.erb
@@ -0,0 +1,143 @@
+#
+# Postfix master process configuration file.  For details on the format
+# of the file, see the master(5) manual page (command: "man 5 master").
+#
+# Do not forget to execute "postfix reload" after editing this file.
+#
+# ==========================================================================
+# service type  private unpriv  chroot  wakeup  maxproc command + args
+#               (yes)   (yes)   (yes)   (never) (100)
+# ==========================================================================
+<% if postfix_smtp_listen == 'all' %>smtp      inet  n       -       -       -       -       smtpd
+<% else %><%= postfix_smtp_listen %>:smtp      inet  n       -       -       -       -       smtpd<% end %>
+#submission inet n       -       -       -       -       smtpd
+#smtp      inet  n       -       -       -       1       postscreen
+#smtpd     pass  -       -       -       -       -       smtpd
+#dnsblog   unix  -       -       -       -       0       dnsblog
+#  -o smtpd_tls_security_level=encrypt
+#  -o smtpd_sasl_auth_enable=yes
+#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
+#  -o milter_macro_daemon_name=ORIGINATING
+#smtps     inet  n       -       -       -       -       smtpd
+#  -o smtpd_tls_wrappermode=yes
+#  -o smtpd_sasl_auth_enable=yes
+#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
+#  -o milter_macro_daemon_name=ORIGINATING
+#628       inet  n       -       -       -       -       qmqpd
+pickup    fifo  n       -       -       60      1       pickup
+cleanup   unix  n       -       -       -       0       cleanup
+qmgr      fifo  n       -       n       300     1       qmgr
+#qmgr     fifo  n       -       -       300     1       oqmgr
+tlsmgr    unix  -       -       -       1000?   1       tlsmgr
+rewrite   unix  -       -       -       -       -       trivial-rewrite
+bounce    unix  -       -       -       -       0       bounce
+defer     unix  -       -       -       -       0       bounce
+trace     unix  -       -       -       -       0       bounce
+verify    unix  -       -       -       -       1       verify
+flush     unix  n       -       -       1000?   0       flush
+proxymap  unix  -       -       n       -       -       proxymap
+proxywrite unix -       -       n       -       1       proxymap
+smtp      unix  -       -       -       -       -       smtp
+# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
+relay     unix  -       -       -       -       -       smtp
+	-o smtp_fallback_relay=
+#       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
+showq     unix  n       -       -       -       -       showq
+error     unix  -       -       -       -       -       error
+retry     unix  -       -       -       -       -       error
+discard   unix  -       -       -       -       -       discard
+local     unix  -       n       n       -       -       local
+virtual   unix  -       n       n       -       -       virtual
+lmtp      unix  -       -       -       -       -       lmtp
+anvil     unix  -       -       -       -       1       anvil
+scache    unix  -       -       -       -       1       scache
+#
+# ====================================================================
+# Interfaces to non-Postfix software. Be sure to examine the manual
+# pages of the non-Postfix software to find out what options it wants.
+#
+# Many of the following services use the Postfix pipe(8) delivery
+# agent.  See the pipe(8) man page for information about ${recipient}
+# and other message envelope options.
+# ====================================================================
+#
+# maildrop. See the Postfix MAILDROP_README file for details.
+# Also specify in main.cf: maildrop_destination_recipient_limit=1
+#
+maildrop  unix  -       n       n       -       -       pipe
+  flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
+#
+# ====================================================================
+#
+# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
+#
+# Specify in cyrus.conf:
+#   lmtp    cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
+#
+# Specify in main.cf one or more of the following:
+#  mailbox_transport = lmtp:inet:localhost
+#  virtual_transport = lmtp:inet:localhost
+#
+# ====================================================================
+#
+# Cyrus 2.1.5 (Amos Gouaux)
+# Also specify in main.cf: cyrus_destination_recipient_limit=1
+#
+#cyrus     unix  -       n       n       -       -       pipe
+#  user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
+#
+# ====================================================================
+#
+# See the Postfix UUCP_README file for configuration details.
+#
+uucp      unix  -       n       n       -       -       pipe
+  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
+#
+# Other external delivery methods.
+#
+ifmail    unix  -       n       n       -       -       pipe
+  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
+bsmtp     unix  -       n       n       -       -       pipe
+  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
+scalemail-backend unix	-	n	n	-	2	pipe
+  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
+mailman   unix  -       n       n       -       -       pipe
+  flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
+  ${nexthop} ${user}
+<% if postfix_use_amavisd == 'yes' %>
+amavis unix - - - - 2 smtp
+        -o smtp_data_done_timeout=1200
+        -o smtp_send_xforward_command=yes
+
+127.0.0.1:10025 inet n - - - - smtpd
+        -o content_filter=
+        -o local_recipient_maps=
+        -o relay_recipient_maps=
+        -o smtpd_restriction_classes=
+        -o smtpd_client_restrictions=
+        -o smtpd_helo_restrictions=
+        -o smtpd_sender_restrictions=
+        -o smtpd_recipient_restrictions=permit_mynetworks,reject
+        -o mynetworks=127.0.0.0/8
+        -o strict_rfc821_envelopes=yes
+        -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
+        -o smtpd_bind_address=127.0.0.1
+<% end %>
+<% if postfix_use_dovecot_lda == 'yes' %>
+dovecot   unix  -       n       n       -       -       pipe
+  flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${recipient}
+<% end %>
+<% if postfix_use_schleuder == 'yes' %>
+schleuder  unix  -       n       n       -       -       pipe
+  flags=DRhu user=schleuder argv=/usr/bin/schleuder ${user}
+<% end %>
+<% if postfix_use_sympa == 'yes' %>
+sympa        unix  -       n       n       -       -       pipe
+  flags=R user=sympa argv=/usr/lib/sympa/bin/queue ${recipient}
+sympabounce  unix  -       n       n       -       -       pipe
+  flags=R user=sympa argv=/usr/lib/sympa/bin/bouncequeue ${user}
+<% end %>
+
+<%- unless postfix_mastercf_tail.to_s.empty? then -%>
+<%= postfix_mastercf_tail %>
+<%- end -%>
diff --git a/templates/master.cf.redhat5.erb b/templates/master.cf.redhat5.erb
index 8c3ee53..3d0c7d6 100644
--- a/templates/master.cf.redhat5.erb
+++ b/templates/master.cf.redhat5.erb
@@ -79,3 +79,7 @@ ifmail    unix  -       n       n       -       -       pipe
   flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
 bsmtp     unix  -       n       n       -       -       pipe
   flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
+
+<%- unless postfix_mastercf_tail.to_s.empty? then -%>
+<%= postfix_mastercf_tail %>
+<%- end -%>