diff --git a/bin/vmail-mboxes-add.sh b/bin/vmail-mboxes-add.sh
index dd84a58..18fc493 100755
--- a/bin/vmail-mboxes-add.sh
+++ b/bin/vmail-mboxes-add.sh
@@ -29,20 +29,20 @@ vmail:getoptions "$@"
 # check for email
 if [[ -z $email ]]; then
   echo "email is required"
-  exit
+  exit 1
 fi
 
 # check for password
 if [[ -z $password ]]; then
   echo "password is required"
-  exit
+  exit 1
 fi
 
 # get domain_id (and thus check if domain already exists)
 domain_id=`mysql --defaults-extra-file=$MYSQL_CONNECTION_INFO_FILE -s -r -N -e "SELECT id from vm_domains WHERE domain='$domain';"`
 if [ -z $domain_id ] ; then
   echo "ERROR: Domain $domain does not exist."
-  exit
+  exit 1
 fi
 
 # make sure mbox doesn't already exist
@@ -85,7 +85,7 @@ if [ "$rowcount" -eq '0' ] ; then
   dbcmd="$dbcmd;'"
 elif [ "$rowcount" -eq '1' ] ; then
   echo "ERROR: $email already exists in vmail database."
-  exit
+  exit 1
 else
   echo "ERROR: System error querying vmail database."
   exit 1