How to send secure TLS email from your Ubuntu server using Postfix, SPF and DKIM records

Imagine Google had to use Mailchimp to send email to 2 billion Android users. How much would Mailchimp charge them? Exactly the same amount you are going to pay after setting up secure email running from your own Linux web server.

Every time I’m stuck setting things up for the first time (SSL certificates for example) I later realize that it’s because I simply don’t understand how something works.

My Coding Books

After going through the process several times I develop a pattern I can follow next time to quickly get it done. These patterns become subjects for my tutorials.

This Standard Encryption (TLS) message comes at a cost of understanding how to properly set up Postfix SPF and…