Building a Self-Hosted Mail Server - PART 1 Theoretical Explanation

In this video i do a rough explanation of all the critical parts which go into a mail server. Part 2 will be a proper install of mailcow which displays an up and running mail server. I'm sure i missed something but thats the fun of doing theory x practical, in the practical section ill find out what i missed. Anyway hope you all enjoy this and then the two pracs coming soon! Content: 0:00 Introduction 1:00 IP and Domain Prerequisites 3:30 MUA,MTA,MDA lifecycle explanation 6:35 SSL/TLS 8:00 DKIM 8:35 "Support Tools" SpamAssassin x Clam AV 10:00 Summary