diff --git a/setup/functions.sh b/setup/functions.sh
index 749c916c..be5c84d6 100644
--- a/setup/functions.sh
+++ b/setup/functions.sh
@@ -359,7 +359,9 @@ install_hook_handler() {
 	else
 		cp "$handler_file" "$dst"
 		# let the daemon know there's a new hook handler
-		tools/hooks_update >/dev/null
+		if systemctl is-active --quiet mailinabox; then
+			tools/hooks_update >/dev/null
+		fi
 	fi
 }
 
diff --git a/setup/mods.available/logwatch.sh b/setup/mods.available/logwatch.sh
index 6b06a615..8f0b9fd8 100755
--- a/setup/mods.available/logwatch.sh
+++ b/setup/mods.available/logwatch.sh
@@ -10,8 +10,14 @@
 # author: downtownallday
 # removal: run `local/logwatch.sh remove`, then delete symbolic link
 #          (`rm local/logwatch.sh`)
+#
+# Warning for cloud-in-a-box users: if ssmtp (or some other
+# mail-transport-agent) is not installed, installing logwatch will
+# pull in postfix
+#
 
-. /etc/mailinabox.conf
+[ -e /etc/mailinabox.conf ] && source /etc/mailinabox.conf
+[ -e /etc/cloudinabox.conf ] && source /etc/cloudinabox.conf
 . setup/functions.sh
 
 logwatch_remove() {