I have 8 years of experience and knowledge as system administrator, I will do setup and management of different Linux Web Hosting Servers, Cloud Servers, Server Monitoring, Server Security, Server Optimisation, Mailing Servers, Email Marketing, SSL, DNS, Apache, Nginx, Cpanel, Plesk, Virtualmin or other panels.I give Services such as cPanel/WHM, Plesk, Mysql/MariaDB, Zimbra, Postfix mail server, Mailenable, smarter mail,etc. i read your project and understand your requirnmnets, i will help you to resolve smtp error.
Let's discuss.
Thanks..