Enable plugin password in config/config.inc.php using: $config['plugins'] = array('password');
After you need access plugins/password (folder).
Rename config.inc.php.dist for config.inc.php in plugins/password.
Access the file and change: $config['password_db_dsn'] = '';
for $config['password_db_dsn'] = 'sqlite:////www/vmail/postfixadmin.db';
And change: $config['password_query'] = '';
for $config['password_query'] = 'UPDATE mailbox set password=%c where username=%u';
I'm and my company group we are SDK development for aaPanel with Node.js and Typescript. Updates coming soon.