> On Feb 15, 2017, at 4:27 AM, Henry <der...@gmail.com> wrote: > > With this being the case what is the point of using SSL certificates > for sending?
I repeat myself. Typically none. They largely only cause some harm. > There is a long discussion on using is here however I am > not unsure of the purpose. Certificates on mail servers are for inbound email. Only very rarely are they an alternative to SASL authentication for submission. > https://community.letsencrypt.org/t/using-lets-encrypt-certs-with-postfix/18957 > > If it does not secure the outbound does it in anyway help to validate > that I as the source am legitimate? Look at the last two comments in that topic (and guess who their author is). Any fool/miscreant can get himself a certificate, having one proves nothing. https://www.postfix.org/TLS_README.html#client_tls_limits -- Viktor.