i have error in smtp: [SMTP: Invalid response code received from server (code: 550, response: Access denied - Invalid HELO name (See RFC2821 4.1.1.1))]
ubuntu server 20.04 in VPS
LAMP apache2, php7.4, mysql mariadb
What else I need to install?
LOG MAIL ERROR
Access Denied typically means wrong login info, wrong hostnames/ports, etc. You should contact your mail provider for further assistance.
Cheers.