Hi. It seems that the recent Postfix update under 7.4-amd64, (package: postfix-3.8.20221007p12-sasl2-mysql) breaks TLS connections, coming from Gmail servers, throwing a TLS library problem.
Here's the log output; postfix/smtpd[32879]: connect from mail-yw1-f178.google.com[209.85.128.178] postfix/smtpd[7374]: Trusted TLS connection established from mail-lf1-f45.google.com[209.85.167.45]: TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256 postfix/smtpd[7374]: warning: TLS library problem: error:0A000126:SSL routines::unexpected eof while reading:ssl/record/rec_layer_s3.c:308: postfix/smtpd[7374]: lost connection after STARTTLS from mail-lf1-f45.google.com[209.85.167.45] postfix/smtpd[7374]: disconnect from mail-lf1-f45.google.com[209.85.167.45] ehlo=1 starttls=1 commands=2 Before updating the package, I had postfix-3.8.20221007p11, and it had no such problem. Any idea? Regards. Mark.
