3 years ago

Category: Kubernetes, Ubuntu

To be a maintainer of an email server is hard. It takes only a short time after the server has been misconfigured as an open relay to have it compromised by spammers and get its IP caught by multiple anti-spam lists! A modern email server must support SASL, DKIM and TLS to be treated nicely by huge email providers like GMail. As a DevOps Engineer, I tend to use Docker as much as I can to support uniform and well-maintainable infrastructure.

There might be a need for additional configuration, i.e. custom mail aliases to forward particular emails (like to abuse@domain.com) to an external email address.