diff --git a/bin/vmail.sh b/bin/vmail.sh
index c6ebf67..017a004 100755
--- a/bin/vmail.sh
+++ b/bin/vmail.sh
@@ -26,7 +26,7 @@ else
     # check that MYSQL_CONNECTION_INFO_FILE exists and is readable
     if [ ! -f "$MYSQL_CONNECTION_INFO_FILE" ]; then
       echo "ERROR: MySQL connection info file ($MYSQL_CONNECTION_INFO_FILE) does not exist or is not readable."
-      exit
+      exit 1
     fi
   fi
 fi
@@ -99,7 +99,7 @@ function vmail:getoptions () {
               alias=${alias%@*}
             else
               echo "ERROR: $domain is not a valid domain name."
-              exit
+              exit 1
             fi
           fi
           ;;
@@ -113,7 +113,7 @@ function vmail:getoptions () {
           domain=${OPTARG,,}
           if ! vmail::validate_domain $domain; then
             echo "ERROR: $domain is not a valid domain name."
-            exit
+            exit 1
           fi
           ;;
         e ) # email address