just found error in /var/log/messages and when I try to backup postfix database. mail# mysqldump -upostfix -p postfix > postfix.sql Enter password: mysqldump: Got error: 1044: Access denied for user ‘postfix’@’localhost’ to database ‘postfix’ when using LOCK TABLES checking user privileges using information_schema mail# mysql -upostfix -p Enter password: Welcome to the MySQL monitor.  Commands […]