diff --git a/roles/mgrote_munin_server/defaults/main.yml b/roles/mgrote_munin_server/defaults/main.yml
index 95cbc2b8..3d869be6 100644
--- a/roles/mgrote_munin_server/defaults/main.yml
+++ b/roles/mgrote_munin_server/defaults/main.yml
@@ -31,8 +31,6 @@ munin_hosts:
     address: "127.0.0.1"
     extra: ["use_node_name yes"]
 
-munin_mail_user: user
-munin_mail_pass: geheim
 munin_mail_server: mail.server.com
 munin_mail_port: 25
 munin_mail_tls: false
diff --git a/roles/mgrote_munin_server/templates/munin.conf b/roles/mgrote_munin_server/templates/munin.conf
index 9f56b32a..5db05327 100644
--- a/roles/mgrote_munin_server/templates/munin.conf
+++ b/roles/mgrote_munin_server/templates/munin.conf
@@ -89,6 +89,7 @@ includedir /etc/munin/munin-conf.d
 
 # Drop somejuser@fnord.comm and anotheruser@blibb.comm an email everytime
 # something changes (OK -> WARNING, CRITICAL -> OK, etc)
+# test with: sudo -u munin /usr/share/munin/munin-limits --contact someuser --force
 {% if munin_enable_alerts is sameas true %}
 contact.someuser.command mail -aFROM:munin@mgrote.net -s "Munin ${var:worst}: ${var:group}::${var:host}::${var:plugin}" {{ munin_alerts_to }}
 {% endif %}