diff --git a/scripts/install/debian.sh b/scripts/install/debian.sh
index d29d5acdce..ee08191ac4 100644
--- a/scripts/install/debian.sh
+++ b/scripts/install/debian.sh
@@ -1,5 +1,7 @@
 # Production-configured Wagtail installation.
 # BUT, SECURE SERVICES/ACCOUNT FOR FULL PRODUCTION USE!
+# For a non-dummy email backend configure Django's EMAIL_BACKEND
+# in settings/production.py post-installation.
 # Tested on Debian 7.0.
 # Tom Dyson and Neal Todd
 
diff --git a/scripts/install/ubuntu.sh b/scripts/install/ubuntu.sh
index c713cefa9f..299e67a8d5 100644
--- a/scripts/install/ubuntu.sh
+++ b/scripts/install/ubuntu.sh
@@ -1,5 +1,7 @@
 # Production-configured Wagtail installation.
 # BUT, SECURE SERVICES/ACCOUNT FOR FULL PRODUCTION USE!
+# For a non-dummy email backend configure Django's EMAIL_BACKEND
+# in settings/production.py post-installation.
 # Tested on Ubuntu 13.04 and 13.10.
 # Tom Dyson and Neal Todd