To use an email server on a VPS, you need to set up a mail transfer agent (MTA) like Postfix, configure DNS records (MX, SPF, DKIM, and DMARC), secure the server with SSL/TLS, and connect it to an email client or webmail for sending and receiving emails. Once configured correctly, a VPS-based email server gives you full control over your email system, better deliverability, and improv... https://blog.oudel.com/how-to-use-an-email-server-on-a-vps-step-by-step-guide/