Not sure if this is a bug or a lacking feature to be honest (should TLS work after Copy to Postfix/Dovecot). Either way I need to solve this with a workaround of some sort as I need to have emails being encrypted. Upon installing SSL Cert and doing Copy to PostFix, the system does not use TLS (emails coming in are not using TLS, outgoing emails are not using TLS).
Below is forum post in asking for help, but no responses. So assume it's a bug considering lots of views and no comments. Adding an SSL Certificate to Postfix. I have followed the adding the Cert and the CA bundle, copy to postfix but emails aren't going over ssl/tls. Tried adding smtpd_tls_security_level = encrypt into main.cf but no change. My emails are going over port 465 but they are not encrypting. I have googled this for some hours now trying to find what is wrong, came across one forum which said to uncomment: submission inet n - - - - smtpd But that causes major errors. Are their manual edits I need to do in postfix files to enable forced TLS outside of what I have done?