I think it is a fundamental question on what your goal is: To send/receive mail under any circumstance or force a minimum security level. With that it is important to distinguish between receiving mail and sending. The issue with leaving every old option available is, that broken tls versions or plain text do not go away that way. Only if some pressure on admins is building to secure their servers, it will change. Most notice pressure by seeing that more and more traffic gets encrypted or mail could not be delivered. Hence you can start by increasing the settings in outgoing. If you feel comfortable and if you want to enforce a minimum security level, change the incoming stuff as well. But again it is a fundamental question on what is more important for you (if you can make that decision). Personally I follow the dutch guides under internet.nl, but I have a personal E-Mail server. All I can say: For the last 10 years I did not have any troubles with stricter settings, more with SPAM rejections...
Am Donnerstag, den 14.05.2020, 20:33 +0300 schrieb Petri Riihikallio: > If you are curious about the defaults in your Postfix use postconf | > grep tls > That should be: postconf -d | grep tls > br, Petri > > >