> On Mar 16, 2020, at 9:04 AM, Benny Pedersen <m...@junc.eu> wrote: > > tested with > > posttls-finger gmail.com > > is it my own postfix that fails with this ? > > how can i solve it ?
For opportunistic TLS, unvalidated certificates are not a failure. There is no problem, everything is working as expected: $ posttls-finger -l may -c -L summary gmail.com posttls-finger: Untrusted TLS connection established to gmail-smtp-in.l.google.com[2607:f8b0:400d:c0f::1a]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 -- Viktor.