diff --git a/docs/content/setup-docker-mailserver-using-the-script-setup.sh.md b/docs/content/setup-docker-mailserver-using-the-script-setup.sh.md
index fa93a56d..78af9c45 100644
--- a/docs/content/setup-docker-mailserver-using-the-script-setup.sh.md
+++ b/docs/content/setup-docker-mailserver-using-the-script-setup.sh.md
@@ -1,4 +1,7 @@
-The latest version of the script `setup.sh` is included in the `docker-mailserver` repository. Get the last version to the script by copying this command in your console:
+`setup.sh` is an administration script that helps with the most common tasks, including initial configuration.  
+It is intented to be used from the host machine, _not_ from within your running container.
+
+The latest version of the script is included in the `docker-mailserver` repository. Get the last version to the script by copying this command in your console:
 
 ```sh
 wget -q -O setup.sh https://raw.githubusercontent.com/tomav/docker-mailserver/master/setup.sh; chmod a+x ./setup.sh