Postfix and TLS encryption
With hackers around every corner, governments wants to read your emails, now a days encryption is a necessity. Now most major sites are only available on https, and more and more IM are using encryption. But what about and old protocol email that is still very popular and we cant go without it any more. How can we increase security for this? Of course you can use S/MIME or PGP and have end to end encryption, but the problem that in transit between mail servers the from, to, cc, and subject fields are not encrypted. For this we can use Transport Layer Security (TLS) encryption between the smtp servers. Now in June 2018 from Google’s perspective 89% outbound mails and 88% inbound mails are using encryption. ...