diff --git a/check_systemd_service.sh b/check_systemd_service.sh
index f3a45f0..de7fd41 100755
--- a/check_systemd_service.sh
+++ b/check_systemd_service.sh
@@ -3,6 +3,9 @@
 LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
 log_file="${LOCK_DIR}/${script_name%%.*}.log"
 
+CONFLICTING_SCRIPTS="check_sympa_spool_msg_dir.sh"
+
+
 #---------------------------------------
 #-----------------------------
 # Base Function(s)
@@ -125,6 +128,16 @@ trim() {
     echo -n "$var"
 }
 
+# - Running in a terminal?
+# -
+if [[ -t 1 ]] ; then
+   terminal=true
+   LOGGING=true
+else
+   terminal=false
+   LOGGING=false
+fi
+
 
 # ----------
 # - Jobhandling 
@@ -139,6 +152,67 @@ trap clean_up SIGHUP SIGINT SIGTERM
 mkdir "$LOCK_DIR"
 
 
+# - Stop here, if these give scripts are running
+# -
+if [[ ${#CONFLICTING_SCRIPTS} -gt 0 ]] ; then
+
+   # - Try using a random start delay to prevent (or at least have a small chance) that
+   # - conflicting scripts will both/all abort if they start at the same time.
+   # -
+   # - !! Notice !!
+   # - This only makes sense if a fixed LOCK directory is used, otherwise the process list
+   # - (and NOT the LOCK-directory) is used to look for scripts running in parallel.
+   # -
+   # - Skip delay if running in an terminal (from copnsole)
+   # -
+   if ! $terminal ; then
+      if [[ "$LOCK_DIR" = "/tmp/${script_name%%.*}.LOCK" ]]; then
+         _shift="$(( $RANDOM % 10 + 1 ))"
+         sleep  $(( $RANDOM % 25 + $_shift ))
+      fi
+   fi
+
+   _stop_running=false
+   for _val in $CONFLICTING_SCRIPTS ; do
+
+      IFS=':' read -a _val_arr <<< "${_val}"
+
+      _script_name="$(basename ${_val_arr[0]})"
+
+      if [[ -n "${_val_arr[1]}" ]] ; then
+
+         if [[ "${_val_arr[1]}" = "CHECK_PROCESS_LIST" ]] ; then
+
+            check_string_ps="${_val_arr[0]}"
+            if ps -e f | grep -E "\s+${check_string_ps}" | grep -v grep | grep -v -E "\s+vim\s+" > /dev/null ; then
+               _stop_running=true
+            fi
+
+         elif [[ -d "${_val_arr[1]}" ]] ; then
+            _stop_running=true
+         fi
+
+      elif [[ -d "/tmp/${_script_name%%.*}.LOCK" ]]; then
+         _stop_running=true
+      fi
+
+      if $_stop_running ; then
+
+         echo ""
+         echo "[ Error ]: The \"${_script_name}\" script is currently running, but it conflicts with this script."
+         echo ""
+         echo "           Exiting now.."
+         echo ""
+
+         clean_up 1
+
+      fi # if $_stop_running ; then
+
+   done # for _val in $CONFLICTING_SCRIPTS ; do
+
+fi # if [[ ${#CONFLICTING_SCRIPTS} -gt 0 ]] ; then
+
+
 
 #---------------------------------------
 #-----------------------------
@@ -146,16 +220,6 @@ mkdir "$LOCK_DIR"
 #-----------------------------
 #---------------------------------------
 
-# - Running in a terminal?
-# -
-if [[ -t 1 ]] ; then
-   terminal=true
-   LOGGING=true
-else
-   terminal=false
-   LOGGING=false
-fi
-
 if [[ -n "$1" ]] ; then
    service_name=$1
 else