In this fast-changing world of containers and microservices it's comforting that some things don't change, such as setting up a Linux email server. It's still a dance of many steps and knitting together several different servers, and once you put it all together it just sits there, all nice and stable, instead of winking in and out of existence like microservices. In this series, we'll put together a nice reliable configurable mail server with Postfix, Dovecot, and OpenSSL on Ubuntu Linux.
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