diff --git a/homelab/nas/copy.sh b/homelab/nas/copy.sh
index 00cbcdf0..8fdea6b9 100644
--- a/homelab/nas/copy.sh
+++ b/homelab/nas/copy.sh
@@ -4,26 +4,32 @@ TO_DIR=$2 # no trailing slash
 
 cp -rv $FROM_DIR $TO_DIR > copy.tmp
 
-(   echo "Subject: Copy Operation Complete"
-    echo "Mime-Version: 1.0"
-    echo "Content-Type: multipart/mixed; boundary=\"d29a0c638b540b23e9a29a3a9aebc900aeeb6a82\""
-    echo "Content-Transfer-Encoding: 7bit"
-    echo ""
-    echo "--d29a0c638b540b23e9a29a3a9aebc900aeeb6a82"
-    echo "Content-Type: text/html; charset=\"UTF-8\""
-    echo "Content-Transfer-Encoding: 7bit"
-    echo "Content-Disposition: inline"
-    echo ""
-    echo "Copy $FROM_DIR to $TO_DIR complete. See attached log for details about what was copied."
-    echo ""
-    echo "--d29a0c638b540b23e9a29a3a9aebc900aeeb6a82"
-    echo "Content-Type: text/plain"
-    echo "Content-Transfer-Encoding: base64"
-    echo "Content-Disposition: attachment; filename=\"log.txt\""
-    echo ""
-    base64 "copy.tmp"
-    echo "--d29a0c638b540b23e9a29a3a9aebc900aeeb6a82--"
+# If filesize is less than 23 million bytes (21.93 MiB) 
+# Gives generous headroom for Gmail max attachment size
+if [ $(ls -la copy.tmp | awk '{print $5}') -le 23000000 ]; then
+  (   echo "Subject: Copy $FROM_DIR to $TO_DIR operation complete."
+      echo "Mime-Version: 1.0"
+      echo "Content-Type: multipart/mixed; boundary=\"d29a0c638b540b23e9a29a3a9aebc900aeeb6a82\""
+      echo "Content-Transfer-Encoding: 7bit"
+      echo ""
+      echo "--d29a0c638b540b23e9a29a3a9aebc900aeeb6a82"
+      echo "Content-Type: text/html; charset=\"UTF-8\""
+      echo "Content-Transfer-Encoding: 7bit"
+      echo "Content-Disposition: inline"
+      echo ""
+      echo "Copy $FROM_DIR to $TO_DIR complete. See attached log for details about what was copied."
+      echo ""
+      echo "--d29a0c638b540b23e9a29a3a9aebc900aeeb6a82"
+      echo "Content-Type: text/plain"
+      echo "Content-Transfer-Encoding: base64"
+      echo "Content-Disposition: attachment; filename=\"log.txt\""
+      echo ""
+      base64 "copy.tmp"
+      echo "--d29a0c638b540b23e9a29a3a9aebc900aeeb6a82--"
 
-  ) | sendmail root
-
-  rm copy.tmp
\ No newline at end of file
+    ) | sendmail root
+    rm copy.tmp
+else
+   echo "Filesize too large to attach. See log file for details." | mail -s "Copy $FROM_DIR to $TO_DIR operation complete." root
+   mv copy.tmp copy_$(date +"%y-%m-%d").log
+fi
\ No newline at end of file