Holy cow!! I cannot believe I overlooked this!!! Ugh.. too many hours of staring at the screen. Josef.. THANK YOU.
Fixed! :) On Thu, Jun 9, 2022 at 9:41 AM Josef Vybíhal <josef.vybi...@gmail.com> wrote: > Hi, > > > smtpd_tls_protocols = !SSLv2, !SSLv3 !TLSv1 !TLSv1.1 !TLSv1.2 !TLSv1.3 > > By this you basically DISABLED all tls protocols. The ! means "not". > > Try this: > > smtpd_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1 > > > You can use > https://ssl-config.mozilla.org/#server=postfix&version=3.4.8&config=intermediate&openssl=1.1.1k&guideline=5.6 > for generally good defaults. Or just use postfix defaults. > Hope that helps. > > Josef >
