I have been running my own mail server since the 1980s, using Debian/exim4 for the last eight years. With the weird patches for greylisting, etc., I never want

I have been running my own mail server since the 1980s, using Debian/exim4 for the last eight years. With the weird patches for greylisting, etc., I never wanted to update it. In the last week, I jumped to docker-mailserver[0]. O.M.G. That is too easy! Yes, there is picking one's way through the options at first, but those go in a tiny config file and survive updates. The heavy lifting is all in one container. I just use it as a mail gateway, into a local machine that has port 25 filtered, but I played a bit with the imap functions, too. You do have to have a box somewhere that can run containers, which for me is a KVM VPS. Gmail instantly was happy with my inbound emails. I got on a backscatter blacklist because I didn't immediately drop invalid email addresses at the gateway, but that will time out shortly. And just as I had settled in with the new server, I got to test the update function. This week the entire docker-mailserver project moved to a new repo name on Github, with a new release. A couple of the config files changed names, but nothing much in contents. A docker pull for the new image name, and my mail server was running the fresh release. Happy, happy, happy. [0] https://github.com/docker-mailserver/docker-mailserver https://github.com/docker-mailserver/docker-mailserver