diff --git a/docs/rolereference.rst b/docs/rolereference.rst
index 42e20b69b9bd01d113567b263b66a712630343db..e3feaf5a18026ae6fb8accfa602c65ccabd42350 100644
--- a/docs/rolereference.rst
+++ b/docs/rolereference.rst
@@ -691,3 +691,33 @@ Parameters
 
 **mail_postmaster** (string, mandatory)
   Mail address to use for the postmaster account in Dovecot.
+
+
+Examples
+~~~~~~~~
+
+Here is an example configuration for setting-up XMPP server using Prosody:
+
+.. code-block:: yaml
+
+  ---
+
+  mail_ldap_url: ldap://ldap.example.com/
+  mail_ldap_tls_truststore: /etc/ssl/certs/truststore.pem
+  mail_ldap_root_dn: dc=example,dc=com
+  mail_ldap_postfix_password: postfix
+  mail_ldap_dovecot_password: dovecot
+
+  mail_user: vmail
+  mail_user_uid: 5000
+  mail_user_gid: 5000
+
+  imap_tls_certificate: /etc/ssl/certs/mail.example.com_imap.pem
+  imap_tls_key: /etc/ssl/private/mail.example.com_imap.pem
+  smtp_tls_certificate: /etc/ssl/certs/mail.example.com_smtp.pem
+  smtp_tls_key: /etc/ssl/private/mail.example.com_smtp.pem
+  imap_folder_separator: /
+  smtp_rbl:
+    - bl.spamcop.net
+    - zen.spamhaus.org
+  mail_postmaster: postmaster@example.com
diff --git a/docs/testsite.rst b/docs/testsite.rst
index 66ce42675c9a1936967d7f1639944f42b29c7303..20846afda9310c179cb2cf37c580cbeffb7f2172 100644
--- a/docs/testsite.rst
+++ b/docs/testsite.rst
@@ -90,5 +90,13 @@ system:
   * After all files are in place, re-run the ``site.yml`` playbook in order to
     restart necessary services etc.
 
+* On ``mail.example.com``, you should manually install the TLS private key and
+  certificate in locations ``/etc/ssl/private/mail.example.com.pem``
+  (*root:ldap, 640*) and ``/etc/ssl/certs/mail.example.com.pem`` (*root:root,
+  644*), respectively. You should also install a truststore that contains the CA
+  certifciate which has issued the LDAP certificate in location
+  ``/etc/ssl/certs/truststore.pem`` (*root:root, 644*). After that, restart the
+  servics ``dovecot`` and ``postfix``.
+
 For more details on how the playbooks and configuration have been implemented,
 feel free to browse the test site files (in directory ``testsite``).
diff --git a/testsite/group_vars/mail.yml b/testsite/group_vars/mail.yml
index e4e48d6cdd642aabd6f51fe26337db4cc01f3595..6f1dacffbcbb1e0e9cd45bfc82ee6cc1e61f1dde 100644
--- a/testsite/group_vars/mail.yml
+++ b/testsite/group_vars/mail.yml
@@ -22,9 +22,9 @@ mail_user_uid: 5000
 mail_user_gid: 5000
 
 imap_tls_certificate: /etc/ssl/certs/mail.example.com_imap.pem
-imap_tls_key: /etc/ssl/private/mail.example.com_imap.key
+imap_tls_key: /etc/ssl/private/mail.example.com_imap.pem
 smtp_tls_certificate: /etc/ssl/certs/mail.example.com_smtp.pem
-smtp_tls_key: /etc/ssl/private/mail.example.com_smtp.key
+smtp_tls_key: /etc/ssl/private/mail.example.com_smtp.pem
 imap_folder_separator: /
 smtp_rbl:
   - bl.spamcop.net