mysqldump -pxxxxxx qzt qf1_mail_account --no-create-info --insert-ignore --complete-insert --skip-extended-insert >qf1_mail_account.sql

 -t, --no-create-info 
           Don't write table creation info.
 --insert-ignore   Insert rows with INSERT IGNORE.
 -c, --complete-insert 
           Use complete insert statements.
 -e, --extended-insert 
           Use multiple-row INSERT syntax that include several
           VALUES lists.
           (Defaults to on; use --skip-extended-insert to disable.)