diff --git a/install_update_dovecot.sh b/install_update_dovecot.sh
index 62dd3b3..993a7b8 100755
--- a/install_update_dovecot.sh
+++ b/install_update_dovecot.sh
@@ -100,10 +100,22 @@ info(){
    echo ""
 }
 
+
 blank_line() {
    echo ""
 }
 
+echo_ok() {
+   echo -e "\033[71G[ \033[32mok\033[m ]"
+}
+echo_failed(){
+   echo -e "\033[71G[ \033[1;31mfailed\033[m ]"
+}
+echo_skipped() {
+   echo -e "\033[71G[ \033[33m\033[1mskipped\033[m ]"
+}
+
+
 
 # - Support systemd ?
 # -
@@ -135,7 +147,7 @@ fi
 ## - Required parameters
 ## -
 [[ -n "$_update" ]] || fatal "Parameter "_update" not set."
-[[ -n "$postmaster_address" ]] || fatal "Parameter "postmaster_address" not set."
+[[ -n "$postmaster_address" ]] || postmaster_address="argus\@oopen.de"
 [[ -n "$hostname" ]] || fatal "Missing value for parameter 'hostname'."
 [[ -n "$ipv4" ]] || fatal "Missing value for parameter 'ipv4'."
 [[ -n "$ipv6" ]] || warn "Missing value for parameter 'ipv6'."