Why Mailcow?
Mailcow is the mail server at KnausDev, self-hosted, multi-domain, and simple enough to manage without becoming a second job. It handles email for my own domains and gives me full control over deliverability, spam filtering, and domain management without relying on a third-party email provider.
How I Use It
Mailcow runs in Proxmox on my homelab, containerized with Docker, with email traffic routed through a static IPv4 via OPNsense and WireGuard on a Hetzner VPS. DNS for all domains is managed through Cloudflare.
What it manages
- Personal domains: knaus.dev and knaus.web with full mailbox and alias management
- Client email: when a client needs their own email infrastructure, I provision their domain on the same Mailcow instance
- Multi-domain administration: clean admin interface for managing mailboxes, aliases, and domain settings across all domains
- Read through Thunderbird: all accounts managed in a single desktop client
Status
Active: primary email infrastructure at KnausDev for personal and client domains.