diff --git a/README.md b/README.md
index 819a55e..83f211f 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,6 @@ git clone https://git.stack-source.com/msb/vmail-stack.git
 cd vmail-stack
 bash install.sh
 ```
+
+
+
diff --git a/install.sh b/install.sh
index 42254f4..6d00cbe 100755
--- a/install.sh
+++ b/install.sh
@@ -15,7 +15,7 @@ if ! grep -q "Ubuntu 20.04" /etc/issue; then
 fi
 
 # check if install is already in place
-if [ -f "/etc/vmail.conf" ] || [ -d "/var/vmail/" ]; then
+if [ -d "/var/vmail/" ]; then
   echo "vmail-stack is already installed, bailing out."
   exit
 fi
@@ -127,6 +127,17 @@ systemctl restart dovecot
 chmod 755 bin/*
 cp bin/* /usr/local/bin/
 
+# install & enable vmail systemd cron
+cp sbin/vmail-cron.sh /usr/local/sbin/
+chmod 755 /usr/local/sbin/vmail-cron.sh
+cp systemd/vmail-cron.* /usr/lib/systemd/system/
+chmod 644 /usr/lib/systemd/system/vmail-cron.*
+systemctl daemon-reload
+systemctl start vmail-cron.timer
+
+chmod 755 sbin/*
+cp sbin/* /usr/local/sbin/
+
 # download and install roundcubemail
 # cd /usr/local/src/
 # wget --continue --quiet https://github.com/roundcube/roundcubemail/releases/download/1.4.11/roundcubemail-1.4.11-complete.tar.gz
diff --git a/sbin/vmail-cron.sh b/sbin/vmail-cron.sh
new file mode 100755
index 0000000..cda7f81
--- /dev/null
+++ b/sbin/vmail-cron.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+# purge Junk & Trash of messages older than 30 days for all mailboxes
+/usr/local/bin/vmail-purge-dirs.sh
diff --git a/systemd/vmail-cron.service b/systemd/vmail-cron.service
new file mode 100644
index 0000000..19a8d03
--- /dev/null
+++ b/systemd/vmail-cron.service
@@ -0,0 +1,13 @@
+# vmail-stack
+# https://git.stack-source.com/msb/vmail-stack
+# MIT License Copyright (c) 2021 Matthew Saunders Brown
+#
+[Unit]
+Description=vmail-stack cron
+
+[Service]
+Type=simple
+ExecStart=/usr/local/sbin/vmail-cron.sh
+
+[Install]
+WantedBy=multi-user.target
diff --git a/systemd/vmail-cron.timer b/systemd/vmail-cron.timer
new file mode 100644
index 0000000..91414fe
--- /dev/null
+++ b/systemd/vmail-cron.timer
@@ -0,0 +1,14 @@
+# vmail-stack
+# https://git.stack-source.com/msb/vmail-stack
+# MIT License Copyright (c) 2021 Matthew Saunders Brown
+#
+[Unit]
+Description=vmail-stack cron once per day
+
+[Timer]
+OnCalendar=daily
+Unit=vmail-cron.service
+AccuracySec=6h
+
+[Install]
+WantedBy=multi-user.target
diff --git a/update.sh b/update.sh
index 9cd989a..f56f055 100755
--- a/update.sh
+++ b/update.sh
@@ -25,6 +25,23 @@ for bin_script in "${bin_script_array[@]}"; do
   fi
 done
 
+# update scripts in sbin
+chmod 755 sbin/*
+readarray -t s_script_array < <(ls -1 sbin/)
+for sbin_script in "${sbin_script_array[@]}"; do
+  if [ -f /usr/local/sbin/$sbin_script ]; then
+    if ! diff -q sbin/$sbin_script /usr/local/sbin/$sbin_script ; then
+      echo "Updating /usr/local/sbin/$sbin_script"
+      cp sbin/$sbin_script /usr/local/sbin/$sbin_script
+      echo
+    fi
+  else
+    echo "Adding new script /usr/local/sbin/$sbin_script"
+    cp sbin/$sbin_script /usr/local/sbin/$sbin_script
+    echo
+  fi
+done
+
 # check etc configs for diffs
 readarray -t etc_configs_array < <(find etc/ -type f)
 for etc_config in "${etc_configs_array[@]}"; do