diff --git a/action_plugins/postconf.py b/action_plugins/postconf.py
index 357e100..5a7b9dd 100755
--- a/action_plugins/postconf.py
+++ b/action_plugins/postconf.py
@@ -22,6 +22,7 @@ import re
 from ansible.plugins.action import ActionBase
 from ansible.utils.vars import merge_hash
 from ansible.module_utils._text import to_text
+from six import string_types
 
 class PfWorkflowError(Exception):
     pass
@@ -29,7 +30,7 @@ class PfWorkflowError(Exception):
 class ActionModule(ActionBase):
 
     def getarg(self, key, default=True):
-        if isinstance(default, basestring):
+        if isinstance(default, string_types):
             if key == 'parameter':
                 return self._task.args.get(key, default)
             return '{}'.format(self._task.args.get(key, default))
@@ -234,7 +235,7 @@ class ActionModule(ActionBase):
         '''
 
         # value should be string
-        if not isinstance(value, basestring):
+        if not isinstance(value, string_types):
             try:
                 value = ', '.join(value)
             except TypeError:
@@ -341,7 +342,7 @@ class ActionModule(ActionBase):
         state = self.getarg('state')
         if parameter:
             # build (parameter, value) pairs for iteration
-            if isinstance(parameter, basestring):
+            if isinstance(parameter, string_types):
                 pv = [ (parameter, self.getarg('value')) ]
             elif isinstance(parameter, dict):
                 # if dict ignore new_value
diff --git a/defaults/main.yml b/defaults/main.yml
index 5d554d5..e1cec18 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,10 +1,6 @@
 ---
-
-# Postfix config directory (changing this is probably a bad idea)
-postfix_config_dir: "/etc/postfix"
-
-# Where to save access lists
-postfix_rules_dir: "{{ postfix_config_dir }}/rules"
+# directorio con reglas
+postfix_rules_dir: /etc/postfix/rules
 
 # accepted email domains
 postfix_mail_domains: "{{ mail_domains | default(['example.com']) }}"
@@ -13,7 +9,7 @@ postfix_mail_domains: "{{ mail_domains | default(['example.com']) }}"
 postfix_server_domain: "{{ postfix_mail_domains | first }}"
 
 # postfix server identification
-postfix_server_name: "mail.{{ postfix_server_domain }}"
+postfix_server_name: mail.{{ postfix_server_domain }}
 
 # domains considered as "local" unix domains (local server users)
 # ansible_fqdn, localhost.localdomain, and localhost are always added regardless of this value
@@ -29,14 +25,14 @@ postfix_domain_config: {}
 # LDAP ------------------------------------------------------------------------
 
 # Default LDAP connection parameters
-postfix_ldap_server: "localhost"
-postfix_ldap_port: 389
-postfix_ldap_version: 3
-postfix_ldap_scope: "sub"
-postfix_ldap_bind: no
-postfix_ldap_bind_dn: ''
-postfix_ldap_bind_pw: ''
-postfix_ldap_start_tls: no
+postfix_ldap_server: "{{ ldap_server | default('localhost') }}"
+postfix_ldap_port: "{{ ldap_port | default(389) }}"
+postfix_ldap_version: "{{ ldap_version | default(3) }}"
+postfix_ldap_scope: "{{ ldap_search_scope | default('sub') }}"
+postfix_ldap_bind: "{{ ldap_bind | default(False) }}"
+postfix_ldap_bind_dn: "{{ ldap_bind_dn | default('') }}"
+postfix_ldap_bind_pw: "{{ ldap_bind_password | default('') }}"
+postfix_ldap_start_tls: "{{ ldap_starttls | default(False) }}"
 postfix_ldap_tls_ca_cert_dir: ''
 postfix_ldap_tls_ca_cert_file: ''
 postfix_ldap_use_group_alias: yes
diff --git a/files/11-postfix.conf b/files/11-postfix.conf
new file mode 100644
index 0000000..40fd6b7
--- /dev/null
+++ b/files/11-postfix.conf
@@ -0,0 +1,17 @@
+# LMTP delivery service for Postfix
+service lmtp {
+  unix_listener /var/spool/postfix/private/dovecot-lmtp {
+    mode = 0600
+    group = postfix
+    user = postfix
+  }
+}
+
+# Authentication service for Postfix
+service auth {
+  unix_listener /var/spool/postfix/private/auth {
+    mode = 0660
+    user = postfix
+    group = postfix
+  }
+}
diff --git a/tasks/lookup_tables.yml b/tasks/lookup_tables.yml
new file mode 100644
index 0000000..8aec000
--- /dev/null
+++ b/tasks/lookup_tables.yml
@@ -0,0 +1,59 @@
+---
+- name: Template LDAP lookup tables
+  template:
+    src: ldap_table.cf.j2
+    dest: /etc/postfix/{{ domain }}_ldap_{{ item }}.cf"
+  when:
+    - postfix_domain_config[domain][item+'_lookup'].provider|default(postfix_lookup_provider) == 'ldap'
+  loop:
+    - user
+    - alias
+    - group
+  notify: reload postfix
+
+- name: Template SQLite lookup tables
+  template:
+    src: sqlite_table.cf.j2
+    dest: /etc/postfix/{{ domain }}_sqlite_{{ item }}.cf
+  when:
+    - postfix_domain_config[domain][item+'_lookup'].provider|default(postfix_lookup_provider) == 'sqlite'
+  loop:
+    - user
+    - alias
+  notify: reload postfix
+
+- name: Template file user lookup table
+  blockinfile:
+    block: |
+      {% for item in postfix_domain_config[domain]['users']|default([]) -%}
+      {% if item is string %}{{ item }} /nomailbox/{{ item }}
+      {% else %}{{ item.user }} {{ item.mailbox }}
+      {% endif %}{% endfor %}
+    dest: "{{ postfix_domain_config[domain].user_lookup.file|default(vmail_home+'/'+domain+'_users') }}"
+    marker: "# {mark} ANSIBLE-MANAGED USERS"
+    create: yes
+  when:
+    - postfix_domain_config[domain].user_lookup.provider|default(postfix_lookup_provider) == 'file'
+  notify: postmap hash users
+
+- name: Template file alias lookup table
+  blockinfile:
+    block: |
+      {% for key in postfix_domain_config[domain]['aliases']|default([]) -%}
+      {{ key.alias }} {{ key.dest }}
+      {% endfor %}
+    dest: "{{ postfix_domain_config[domain].user_lookup.file|default(vmail_home+'/'+domain+'_aliases') }}"
+    marker: "# {mark} ANSIBLE-MANAGED ALIASES"
+    create: yes
+  when:
+    - postfix_domain_config[domain].alias_lookup.provider|default(postfix_lookup_provider) == 'file'
+  notify: postmap hash aliases
+
+- name: Template no-reply aliases file
+  copy:
+    content: |
+      {% for address in postfix_domain_config[domain].noreply_aliases|default(['noreply']) %}
+      {{ address }}@domain  _dev_null
+      {% endfor %}
+    dest: "{{ postfix_domain_config[domain].noreply_file|default(vmail_home+'/'+domain+'_noreply') }}"
+  notify: postmap no reply aliases
diff --git a/tasks/main.yml b/tasks/main.yml
index c875ad7..0f97c32 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,123 +1,118 @@
 ---
-- name: "Load default config for domains"
-  set_fact:
-    dc: "{{ dc|default({})|combine( { item: {
-      'user_lookup': {
-        'provider': 'file',
-        'file': vmail_home +'/'+item+'_users',
-        'domain': item,
-        'server_host': postfix_ldap_server,
-        'server_port': postfix_ldap_port,
-        'version': postfix_ldap_version,
-        'scope': postfix_ldap_scope,
-        'bind': postfix_ldap_bind,
-        'bind_dn': postfix_ldap_bind_dn,
-        'bind_pw': postfix_ldap_bind_pw,
-        'start_tls': postfix_ldap_start_tls,
-        'tls_ca_cert_file': postfix_ldap_tls_ca_cert_file,
-        'tls_ca_cert_dir': postfix_ldap_tls_ca_cert_dir,
-        'search_base':
-          'ou=People,'+item.split('.')|map('regex_replace','^','dc=')|join(','),
-        'query_filter': '(&(objectClass=inetOrgPerson)(uid=%u))',
-        'result_attribute': 'uid',
-        'result_format': vmail_home+'/mail/'+item+'/%s/',
-        'dbpath': vmail_home+'/'+item+'_users.sqlite',
-        'query': postfix_sqlite_user_query
-      },
-      'users': [],
-      'alias_lookup': {
-        'provider': 'file',
-        'file': vmail_home +'/'+item+'_aliases',
-        'domain': item,
-        'server_host': postfix_ldap_server,
-        'server_port': postfix_ldap_port,
-        'version': postfix_ldap_version,
-        'scope': postfix_ldap_scope,
-        'bind': postfix_ldap_bind,
-        'bind_dn': postfix_ldap_bind_dn,
-        'bind_pw': postfix_ldap_bind_pw,
-        'start_tls': postfix_ldap_start_tls,
-        'tls_ca_cert_file': postfix_ldap_tls_ca_cert_file,
-        'tls_ca_cert_dir': postfix_ldap_tls_ca_cert_dir,
-        'search_base':
-          'ou=Alias,'+item.split('.')|map('regex_replace','^','dc=')|join(','),
-        'query_filter': '(&(objectClass=nisMailAlias)(cn=%u))',
-        'result_attribute': 'rfc822MailMember',
-        'result_format': '%s',
-        'dbpath': vmail_home+'/'+item+'_aliases.sqlite',
-        'query': postfix_sqlite_alias_query
-      },
-      'aliases': [],
-      'use_group_as_alias': postfix_ldap_use_group_alias,
-      'group_lookup': {
-        'provider': 'ldap',
-        'domain': item,
-        'server_host': postfix_ldap_server,
-        'server_port': postfix_ldap_port,
-        'version': postfix_ldap_version,
-        'scope': postfix_ldap_scope,
-        'bind': postfix_ldap_bind,
-        'bind_dn': postfix_ldap_bind_dn,
-        'bind_pw': postfix_ldap_bind_pw,
-        'start_tls': postfix_ldap_start_tls,
-        'tls_ca_cert_file': postfix_ldap_tls_ca_cert_file,
-        'tls_ca_cert_dir': postfix_ldap_tls_ca_cert_dir,
-        'search_base':
-          'ou=Group,'+item.split('.')|map('regex_replace','^','dc=')|join(','),
-        'query_filter': '(&(objectClass=posixGroup)(cn=%u))',
-        'result_attribute': 'memberUid',
-        'result_format': '%s@{{d}}',
-      },
-      'noreply_aliases': [ 'noreply' ],
-      'noreply_file': vmail_home +'/'+item+'_noreply',
-      } }, recursive=True) }}"
-  with_items: "{{ postfix_mail_domains|belist }}"
+# - name: "Load default config for domains"
+#   set_fact:
+#     dc: "{{ dc|default({})|combine( { item: {
+#       'user_lookup': {
+#         'provider': 'file',
+#         'file': vmail_home +'/'+item+'_users',
+#         'domain': item,
+#         'server_host': postfix_ldap_server,
+#         'server_port': postfix_ldap_port,
+#         'version': postfix_ldap_version,
+#         'scope': postfix_ldap_scope,
+#         'bind': postfix_ldap_bind,
+#         'bind_dn': postfix_ldap_bind_dn,
+#         'bind_pw': postfix_ldap_bind_pw,
+#         'start_tls': postfix_ldap_start_tls,
+#         'tls_ca_cert_file': postfix_ldap_tls_ca_cert_file,
+#         'tls_ca_cert_dir': postfix_ldap_tls_ca_cert_dir,
+#         'search_base':
+#           'ou=People,'+item.split('.')|map('regex_replace','^','dc=')|join(','),
+#         'query_filter': '(&(objectClass=inetOrgPerson)(uid=%u))',
+#         'result_attribute': 'uid',
+#         'result_format': vmail_home+'/mail/'+item+'/%s/',
+#         'dbpath': vmail_home+'/'+item+'_users.sqlite',
+#         'query': postfix_sqlite_user_query
+#       },
+#       'users': [],
+#       'alias_lookup': {
+#         'provider': 'file',
+#         'file': vmail_home +'/'+item+'_aliases',
+#         'domain': item,
+#         'server_host': postfix_ldap_server,
+#         'server_port': postfix_ldap_port,
+#         'version': postfix_ldap_version,
+#         'scope': postfix_ldap_scope,
+#         'bind': postfix_ldap_bind,
+#         'bind_dn': postfix_ldap_bind_dn,
+#         'bind_pw': postfix_ldap_bind_pw,
+#         'start_tls': postfix_ldap_start_tls,
+#         'tls_ca_cert_file': postfix_ldap_tls_ca_cert_file,
+#         'tls_ca_cert_dir': postfix_ldap_tls_ca_cert_dir,
+#         'search_base':
+#           'ou=Alias,'+item.split('.')|map('regex_replace','^','dc=')|join(','),
+#         'query_filter': '(&(objectClass=nisMailAlias)(cn=%u))',
+#         'result_attribute': 'rfc822MailMember',
+#         'result_format': '%s',
+#         'dbpath': vmail_home+'/'+item+'_aliases.sqlite',
+#         'query': postfix_sqlite_alias_query
+#       },
+#       'aliases': [],
+#       'use_group_as_alias': postfix_ldap_use_group_alias,
+#       'group_lookup': {
+#         'provider': 'ldap',
+#         'domain': item,
+#         'server_host': postfix_ldap_server,
+#         'server_port': postfix_ldap_port,
+#         'version': postfix_ldap_version,
+#         'scope': postfix_ldap_scope,
+#         'bind': postfix_ldap_bind,
+#         'bind_dn': postfix_ldap_bind_dn,
+#         'bind_pw': postfix_ldap_bind_pw,
+#         'start_tls': postfix_ldap_start_tls,
+#         'tls_ca_cert_file': postfix_ldap_tls_ca_cert_file,
+#         'tls_ca_cert_dir': postfix_ldap_tls_ca_cert_dir,
+#         'search_base':
+#           'ou=Group,'+item.split('.')|map('regex_replace','^','dc=')|join(','),
+#         'query_filter': '(&(objectClass=posixGroup)(cn=%u))',
+#         'result_attribute': 'memberUid',
+#         'result_format': '%s@{{d}}',
+#       },
+#       'noreply_aliases': [ 'noreply' ],
+#       'noreply_file': vmail_home +'/'+item+'_noreply',
+#       } }, recursive=True) }}"
+#   with_items: "{{ postfix_mail_domains }}"
 
-- name: "Override config for domains"
-  set_fact:
-    dc: '{{ dc | combine(postfix_domain_config, recursive=True) }}'
+# - name: "Override config for domains"
+#   set_fact:
+#     dc: '{{ dc | combine(postfix_domain_config, recursive=True) }}'
 
-- apt: name=postfix update_cache=yes
-- apt: name=postfix-pcre
+- name: Instalar Postfix
+  apt:
+    name:
+      - postfix
+      - postfix-pcre
+      - postfix-ldap
+      - postfix-sqlite
+    state: present
   notify: restart postfix
 
-- apt: name=postfix-ldap
-  when:
-    # see http://jmespath.org/
-    - '"ldap" in dc|json_query("*.[ alias_lookup, user_lookup ][].provider")'
-  notify: restart postfix
-- apt: name=postfix-sqlite
-  when:
-    # see http://jmespath.org/
-    - '"sqlite" in dc|json_query("*.[ alias_lookup, user_lookup ][].provider")'
-  notify: restart postfix
-
-- name: "Template Dovecot delivery/auth service config for Postfix"
-  template:
-    src: 11-postfix.conf.j2
+- name: Servicio delivery+auth mediante Dovecot
+  copy:
+    src: 11-postfix.conf
     dest: /etc/dovecot/conf.d/11-postfix.conf
   notify: restart dovecot
 
-- name: "Configure lookup tables"
+- name: Configurar lookup tables
   include_tasks: lookup_tables.yml
-  with_items: "{{postfix_mail_domains|belist}}"
+  loop: "{{ postfix_mail_domains }}"
   loop_control:
-    loop_var: "domain"
+    loop_var: domain
 
-- name: "Configure no-reply local mail alias"
+- name: Alias local para usuario no-reply
   blockinfile:
     block: |
       _dev_null: /dev/null
     marker: "# {mark} ANSIBLE-MANAGED ALIASES"
-    path: "/etc/aliases"
+    path: /etc/aliases
   notify: newaliases
 
-- name: "Create rules directory for access lists"
+- name: Directorio de reglas para access lists
   file:
     name: "{{ postfix_rules_dir }}"
     state: directory
 
-- name: "Template client access list"
+- name: Template client access list
   blockinfile:
     path: "{{ postfix_rules_dir }}/client_access_list"
     create: yes
@@ -127,7 +122,7 @@
       {{ entry.regex }} {{ entry.action }}
       {% endfor %}
 
-- name: "Template helo access list"
+- name: Template helo access list
   blockinfile:
     path: "{{ postfix_rules_dir }}/helo_access_list"
     create: yes
@@ -138,7 +133,7 @@
       {% endfor %}
   notify: postmap access lists
 
-- name: "Template recipient access list"
+- name: Template recipient access list
   blockinfile:
     path: "{{ postfix_rules_dir }}/recipient_access_list"
     create: yes
@@ -149,7 +144,7 @@
       {% endfor %}
   notify: postmap access lists
 
-- name: "Template sender access list"
+- name: Template sender access list
   blockinfile:
     path: "{{ postfix_rules_dir }}/sender_access_list"
     create: yes
@@ -160,61 +155,80 @@
       {% endfor %}
   notify: postmap access lists
 
-- name: "Set main.cf parameters"
+- name: Configurar main.cf
   postconf:
     parameter:
       mydestination: >-
-        {{ postfix_unix_domains | belist |
+        {{ postfix_unix_domains |
         union( [ ansible_fqdn, 'localhost.localdomain', 'localhost'] ) |
-        difference( postfix_mail_domains|belist ) }}
-      myhostname: "{{ postfix_server_name }}"
-      mydomain: "{{ postfix_server_domain }}"
+        difference( postfix_mail_domains ) }}
+      myhostname:
+        "{{ postfix_server_name }}"
+      mydomain:
+        "{{ postfix_server_domain }}"
       mynetworks: >-
         {{ ['127.0.0.0/8', '[::ffff:127.0.0.0]/104', '[::1]/128'] |
         union( postfix_local_networks ) }}
       virtual_alias_maps: >-
-        {% for d in postfix_mail_domains|belist %}
-        {% set p = dc[d]['alias_lookup']['provider'] %}
+        {% for d in postfix_mail_domains %}
+        {% set p = postfix_domain_config[d].alias_lookup.provider|default(postfix_lookup_provider) %}
         {% if p == "ldap" %}
-        ldap:{{ postfix_config_dir }}/{{d}}_ldap_alias.cf
-        {% if dc[d]['use_group_as_alias'] %},
-        ldap:{{ postfix_config_dir }}/{{d}}_ldap_group.cf
+        ldap:/etc/postfix/{{ d }}_ldap_alias.cf
+        {% if postfix_domain_config[d].alias_lookup.use_group_as_alias|default(postfix_ldap_use_group_alias) %},
+        ldap:/etc/postfix/{{ d }}_ldap_group.cf
         {% endif %}
         {% elif p == "sqlite" %}
-        sqlite:{{ postfix_config_dir }}/{{d}}_sqlite_alias.cf
+        sqlite:/etc/postfix/{{d}}_sqlite_alias.cf
         {% elif p == "file" %}
-        hash:{{ vmail_home }}/{{d}}_aliases
+        hash:{{ vmail_home }}/{{ d }}_aliases
         {% endif %}{{ '' if loop.last else ',' }}{% endfor %},
-        hash:{{ postfix_config_dir }}/noreply_aliases
+        hash:/etc/postfix/noreply_aliases
       virtual_mailbox_maps: >-
-        {% for d in postfix_mail_domains|belist %}
-        {% set p = dc[d]['user_lookup']['provider'] %}
+        {% for d in postfix_mail_domains %}
+        {% set p = postfix_domain_config[d].user_lookup.provider|default(postfix_lookup_provider) %}
         {% if p == "ldap" %}
-        ldap:{{ postfix_config_dir }}/{{d}}_ldap_user.cf
+        ldap:/etc/postfix/{{ d }}_ldap_user.cf
         {% elif p == "sqlite" %}
-        sqlite:{{ postfix_config_dir }}/{{d}}_sqlite_user.cf
+        sqlite:/etc/postfix/{{ d }}_sqlite_user.cf
         {% elif p == "file" %}
-        hash:{{ vmail_home }}/{{d}}_users
+        hash:{{ vmail_home }}/{{ d }}_users
         {% endif %}{{ '' if loop.last else ',' }}{% endfor %},
-      virtual_transport: "lmtp:unix:private/dovecot-lmtp"
-      virtual_mailbox_domains: "{{ postfix_mail_domains }}"
+      virtual_transport:
+        lmtp:unix:private/dovecot-lmtp
+      virtual_mailbox_domains:
+        "{{ postfix_mail_domains }}"
       smtpd_sasl_path: private/auth
       smtpd_sasl_type: dovecot
-      smtpd_sasl_auth_enable: "{{ 'yes' if postfix_enable_smtpd_auth else 'no' }}"
-      smtpd_tls_cert_file: "{{ postfix_tls_certificate }}"
-      smtpd_tls_key_file: "{{ postfix_tls_private_key }}"
-      smtp_tls_security_level: "{{postfix_incoming_tls_security}}"
-      smtpd_tls_security_level: "{{postfix_outgoing_tls_security}}"
-      smtpd_tls_auth_only: "{{ 'yes' if postfix_allow_insecure_auth else 'no'}}"
-      smtpd_tls_session_cache_database: "{{ 'btree:${data_directory}/smtpd_scache' if postfix_tls_session_cache else '' }}"
-      smtpd_client_restrictions: "{{ postfix_client_restrictions }}"
-      smtpd_data_restrictions: "{{ postfix_data_restrictions }}"
-      smtpd_helo_restrictions: "{{ postfix_helo_restrictions }}"
-      smtpd_relay_restrictions: "{{ postfix_relay_restrictions }}"
-      smtpd_recipient_restrictions: "{{ postfix_recipient_restrictions }}"
-      message_size_limit: "{{ postfix_message_size_limit }}"
-      smtpd_helo_required: "{{ 'yes' if postfix_helo_required else 'no' }}"
-      biff: "{{ 'yes' if postfix_biff else 'no' }}"
+      smtpd_sasl_auth_enable:
+        "{{ 'yes' if postfix_enable_smtpd_auth else 'no' }}"
+      smtpd_tls_cert_file:
+        "{{ postfix_tls_certificate }}"
+      smtpd_tls_key_file:
+        "{{ postfix_tls_private_key }}"
+      smtp_tls_security_level:
+        "{{postfix_incoming_tls_security}}"
+      smtpd_tls_security_level:
+        "{{postfix_outgoing_tls_security}}"
+      smtpd_tls_auth_only:
+        "{{ 'yes' if postfix_allow_insecure_auth else 'no'}}"
+      smtpd_tls_session_cache_database:
+        "{{ 'btree:${data_directory}/smtpd_scache' if postfix_tls_session_cache else '' }}"
+      smtpd_client_restrictions:
+        "{{ postfix_client_restrictions }}"
+      smtpd_data_restrictions:
+        "{{ postfix_data_restrictions }}"
+      smtpd_helo_restrictions:
+        "{{ postfix_helo_restrictions }}"
+      smtpd_relay_restrictions:
+        "{{ postfix_relay_restrictions }}"
+      smtpd_recipient_restrictions:
+        "{{ postfix_recipient_restrictions }}"
+      message_size_limit:
+        "{{ postfix_message_size_limit }}"
+      smtpd_helo_required:
+        "{{ 'yes' if postfix_helo_required else 'no' }}"
+      biff:
+        "{{ 'yes' if postfix_biff else 'no' }}"
   notify: reload postfix
 
 - name: "Enable submission service"