diff --git a/host_vars/mail01.l3d.space.yml b/host_vars/mail01.l3d.space.yml
index 00c7795..16634e5 100644
--- a/host_vars/mail01.l3d.space.yml
+++ b/host_vars/mail01.l3d.space.yml
@@ -11,6 +11,9 @@ users:
 accounts:
   - l3d
 
+# mail domains
+additional_dns_maildomains: 'mail.l3d.space imap.l3d.space smtp.l3d.space'
+
 # firewall
 firewall_allowed_tcp_ports:
   - "22"
diff --git a/roles/mailserver_preperation/defaults/main.yml b/roles/mailserver_preperation/defaults/main.yml
new file mode 100644
index 0000000..7bc1a64
--- /dev/null
+++ b/roles/mailserver_preperation/defaults/main.yml
@@ -0,0 +1,5 @@
+---
+set_additional_nameserver: true
+additional_v4nameserver: '46.182.19.48'
+additional_v6nameserver: '2a02:2970:1002::18'
+additional_dns_maildomains: "{{ ansible_fqdn }}"
diff --git a/roles/mailserver_preperation/tasks/main.yml b/roles/mailserver_preperation/tasks/main.yml
index 9092a5d..8971402 100644
--- a/roles/mailserver_preperation/tasks/main.yml
+++ b/roles/mailserver_preperation/tasks/main.yml
@@ -10,7 +10,7 @@
   lineinfile:
     dest: /etc/hosts
     regexp: "^127.0.1.1"
-    line: "127.0.1.1 {{ inventory_hostname }} {{ ansible_hostname }}"
+    line: "127.0.1.1 {{ inventory_hostname }} {{ ansible_hostname }} {{ additional_dns_maildomains }}"
     state: present
 
 - name: Set /etc/mailname
@@ -18,3 +18,12 @@
   copy:
     dest: "/etc/mailname"
     content: "{{ inventory_hostname }}"
+
+- name: set own dns resolver
+  become: true
+  template:
+    src: templates/resolve.conf.j2
+    dest: /etc/resolv.conf
+    mode: 0644
+    owner: root
+    group: root
diff --git a/roles/mailserver_preperation/templates/resolve.conf.j2 b/roles/mailserver_preperation/templates/resolve.conf.j2
new file mode 100644
index 0000000..45349a1
--- /dev/null
+++ b/roles/mailserver_preperation/templates/resolve.conf.j2
@@ -0,0 +1,7 @@
+# {{ ansible_managed }}
+nameserver ::1
+nameserver 127.0.0.1
+{% if set_additional_nameserver -%}
+nameserver {{ additional_v4nameserver }}
+nameserver {{ additional_v6nameserver }}
+{%- endif %}