Comment NetServa self-hosted Email/Web (Score 1) 337
I've got a small hosting system that includes Postfix/Dovecot and SpamProbe for a pretty good mailserver setup on Ubuntu 18.04. It will run in as little as 200 MB of ram in a LXD container when using SQLite as the backend. The Postfix main.cf file has a commented out section to relay outgoing mail through an upstream email account to get around blocked dynamic network ranges and I find a 5 minute Dynamic DNS update schedule is suitable for handling a MX record pointing to whatever device is handling incoming email on your port forwarded LAN IP. Better still is a DigitalOcean, Linode or Vultr VPS with a static IP but their network ranges are often also blocked by extreme blacklists. I'm happy to assist anyone willing to try this system...
