Install iRedMail Mail Server As Proxmox VM With OPNSense As Firewall

Would you like to have your own mail server that serves emails for multiple domains? Are you struggling with MX Blacklists and would like to have your emails in your possession but still send emails out without them reaching spam boxes? Then let’s set up iRedMail with SMTP relay using Brevo (or another provider). With Brevo, you can send up to 300 emails daily for free, which is enough for most people who do not run a business. Let’s dive into the plethora of open source options that can take us there!